]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/gpu/drm/nouveau/nouveau_bios.c
git://bbs.cooldavid.org / net-next-2.6.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[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 30
67eda20e
FJ		 31#include <linux/io-mapping.h>
32
6ee73861
BS		 33/* these defines are made up */
34#define NV_CIO_CRE_44_HEADA 0x0
35#define NV_CIO_CRE_44_HEADB 0x3
36#define FEATURE_MOBILE 0x10 /* also FEATURE_QUADRO for BMP */
37#define LEGACY_I2C_CRT 0x80
38#define LEGACY_I2C_PANEL 0x81
39#define LEGACY_I2C_TV 0x82
40
41#define EDID1_LEN 128
42
43#define BIOSLOG(sip, fmt, arg...) NV_DEBUG(sip->dev, fmt, ##arg)
44#define LOG_OLD_VALUE(x)
45
46#define ROM16(x) le16_to_cpu(*(uint16_t *)&(x))
47#define ROM32(x) le32_to_cpu(*(uint32_t *)&(x))
48
49struct init_exec {
50 bool execute;
51 bool repeat;
52};
53
54static bool nv_cksum(const uint8_t *data, unsigned int length)
55{
56 /*
57 * There's a few checksums in the BIOS, so here's a generic checking
58 * function.
59 */
60 int i;
61 uint8_t sum = 0;
62
63 for (i = 0; i < length; i++)
64 sum += data[i];
65
66 if (sum)
67 return true;
68
69 return false;
70}
71
72static int
73score_vbios(struct drm_device *dev, const uint8_t *data, const bool writeable)
74{
75 if (!(data[0] == 0x55 && data[1] == 0xAA)) {
76 NV_TRACEWARN(dev, "... BIOS signature not found\n");
77 return 0;
78 }
79
80 if (nv_cksum(data, data[2] * 512)) {
81 NV_TRACEWARN(dev, "... BIOS checksum invalid\n");
82 /* if a ro image is somewhat bad, it's probably all rubbish */
83 return writeable ? 2 : 1;
84 } else
85 NV_TRACE(dev, "... appears to be valid\n");
86
87 return 3;
88}
89
90static void load_vbios_prom(struct drm_device *dev, uint8_t *data)
91{
92 struct drm_nouveau_private *dev_priv = dev->dev_private;
93 uint32_t pci_nv_20, save_pci_nv_20;
94 int pcir_ptr;
95 int i;
96
97 if (dev_priv->card_type >= NV_50)
98 pci_nv_20 = 0x88050;
99 else
100 pci_nv_20 = NV_PBUS_PCI_NV_20;
101
102 /* enable ROM access */
103 save_pci_nv_20 = nvReadMC(dev, pci_nv_20);
104 nvWriteMC(dev, pci_nv_20,
105 save_pci_nv_20 & ~NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED);
106
107 /* bail if no rom signature */
108 if (nv_rd08(dev, NV_PROM_OFFSET) != 0x55 ||
109 nv_rd08(dev, NV_PROM_OFFSET + 1) != 0xaa)
110 goto out;
111
112 /* additional check (see note below) - read PCI record header */
113 pcir_ptr = nv_rd08(dev, NV_PROM_OFFSET + 0x18) |
114 nv_rd08(dev, NV_PROM_OFFSET + 0x19) << 8;
115 if (nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr) != 'P' ||
116 nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 1) != 'C' ||
117 nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 2) != 'I' ||
118 nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 3) != 'R')
119 goto out;
120
121 /* on some 6600GT/6800LE prom reads are messed up. nvclock alleges a
122 * a good read may be obtained by waiting or re-reading (cargocult: 5x)
123 * each byte. we'll hope pramin has something usable instead
124 */
125 for (i = 0; i < NV_PROM_SIZE; i++)
126 data[i] = nv_rd08(dev, NV_PROM_OFFSET + i);
127
128out:
129 /* disable ROM access */
130 nvWriteMC(dev, pci_nv_20,
131 save_pci_nv_20 | NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED);
132}
133
134static void load_vbios_pramin(struct drm_device *dev, uint8_t *data)
135{
136 struct drm_nouveau_private *dev_priv = dev->dev_private;
137 uint32_t old_bar0_pramin = 0;
138 int i;
139
140 if (dev_priv->card_type >= NV_50) {
141 uint32_t vbios_vram = (nv_rd32(dev, 0x619f04) & ~0xff) << 8;
142
143 if (!vbios_vram)
144 vbios_vram = (nv_rd32(dev, 0x1700) << 16) + 0xf0000;
145
146 old_bar0_pramin = nv_rd32(dev, 0x1700);
147 nv_wr32(dev, 0x1700, vbios_vram >> 16);
148 }
149
150 /* bail if no rom signature */
151 if (nv_rd08(dev, NV_PRAMIN_OFFSET) != 0x55 ||
152 nv_rd08(dev, NV_PRAMIN_OFFSET + 1) != 0xaa)
153 goto out;
154
155 for (i = 0; i < NV_PROM_SIZE; i++)
156 data[i] = nv_rd08(dev, NV_PRAMIN_OFFSET + i);
157
158out:
159 if (dev_priv->card_type >= NV_50)
160 nv_wr32(dev, 0x1700, old_bar0_pramin);
161}
162
163static void load_vbios_pci(struct drm_device *dev, uint8_t *data)
164{
165 void __iomem *rom = NULL;
166 size_t rom_len;
167 int ret;
168
169 ret = pci_enable_rom(dev->pdev);
170 if (ret)
171 return;
172
173 rom = pci_map_rom(dev->pdev, &rom_len);
174 if (!rom)
175 goto out;
176 memcpy_fromio(data, rom, rom_len);
177 pci_unmap_rom(dev->pdev, rom);
178
179out:
180 pci_disable_rom(dev->pdev);
181}
182
afeb3e11
DA		 183static void load_vbios_acpi(struct drm_device *dev, uint8_t *data)
184{
185 int i;
186 int ret;
187 int size = 64 * 1024;
188
189 if (!nouveau_acpi_rom_supported(dev->pdev))
190 return;
191
192 for (i = 0; i < (size / ROM_BIOS_PAGE); i++) {
193 ret = nouveau_acpi_get_bios_chunk(data,
194 (i * ROM_BIOS_PAGE),
195 ROM_BIOS_PAGE);
196 if (ret <= 0)
197 break;
198 }
199 return;
200}
201
6ee73861
BS		 202struct methods {
203 const char desc[8];
204 void (*loadbios)(struct drm_device *, uint8_t *);
205 const bool rw;
6ee73861
BS		 206};
207
41090eb4 208static struct methods shadow_methods[] = {
6ee73861
BS		 209 { "PRAMIN", load_vbios_pramin, true },
210 { "PROM", load_vbios_prom, false },
211 { "PCIROM", load_vbios_pci, true },
41090eb4 212 { "ACPI", load_vbios_acpi, true },
6ee73861 213};
eae6192a 214#define NUM_SHADOW_METHODS ARRAY_SIZE(shadow_methods)
6ee73861
BS		 215
216static bool NVShadowVBIOS(struct drm_device *dev, uint8_t *data)
217{
41090eb4 218 struct methods *methods = shadow_methods;
6ee73861 219 int testscore = 3;
eae6192a 220 int scores[NUM_SHADOW_METHODS], i;
6ee73861
BS		 221
222 if (nouveau_vbios) {
eae6192a 223 for (i = 0; i < NUM_SHADOW_METHODS; i++)
657b6245 224 if (!strcasecmp(nouveau_vbios, methods[i].desc))
6ee73861 225 break;
6ee73861 226
eae6192a 227 if (i < NUM_SHADOW_METHODS) {
6ee73861 228 NV_INFO(dev, "Attempting to use BIOS image from %s\n",
657b6245 229 methods[i].desc);
6ee73861 230
657b6245
MK		 231 methods[i].loadbios(dev, data);
232 if (score_vbios(dev, data, methods[i].rw))
6ee73861
BS		 233 return true;
234 }
235
236 NV_ERROR(dev, "VBIOS source \'%s\' invalid\n", nouveau_vbios);
237 }
238
eae6192a 239 for (i = 0; i < NUM_SHADOW_METHODS; i++) {
6ee73861 240 NV_TRACE(dev, "Attempting to load BIOS image from %s\n",
657b6245 241 methods[i].desc);
6ee73861 242 data[0] = data[1] = 0; /* avoid reuse of previous image */
657b6245
MK		 243 methods[i].loadbios(dev, data);
244 scores[i] = score_vbios(dev, data, methods[i].rw);
245 if (scores[i] == testscore)
6ee73861 246 return true;
6ee73861
BS		 247 }
248
249 while (--testscore > 0) {
eae6192a 250 for (i = 0; i < NUM_SHADOW_METHODS; i++) {
657b6245 251 if (scores[i] == testscore) {
6ee73861 252 NV_TRACE(dev, "Using BIOS image from %s\n",
657b6245
MK		 253 methods[i].desc);
254 methods[i].loadbios(dev, data);
6ee73861
BS		 255 return true;
256 }
6ee73861
BS		 257 }
258 }
259
260 NV_ERROR(dev, "No valid BIOS image found\n");
261 return false;
262}
263
264struct init_tbl_entry {
265 char *name;
266 uint8_t id;
9170a824
BS		 267 /* Return:
268 * > 0: success, length of opcode
269 * 0: success, but abort further parsing of table (INIT_DONE etc)
270 * < 0: failure, table parsing will be aborted
271 */
37383650 272 int (*handler)(struct nvbios *, uint16_t, struct init_exec *);
6ee73861
BS		 273};
274
275struct bit_entry {
276 uint8_t id[2];
277 uint16_t length;
278 uint16_t offset;
279};
280
281static int parse_init_table(struct nvbios *, unsigned int, struct init_exec *);
282
283#define MACRO_INDEX_SIZE 2
284#define MACRO_SIZE 8
285#define CONDITION_SIZE 12
286#define IO_FLAG_CONDITION_SIZE 9
287#define IO_CONDITION_SIZE 5
288#define MEM_INIT_SIZE 66
289
290static void still_alive(void)
291{
292#if 0
293 sync();
294 msleep(2);
295#endif
296}
297
298static uint32_t
299munge_reg(struct nvbios *bios, uint32_t reg)
300{
301 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
302 struct dcb_entry *dcbent = bios->display.output;
303
304 if (dev_priv->card_type < NV_50)
305 return reg;
306
307 if (reg & 0x40000000) {
308 BUG_ON(!dcbent);
309
310 reg += (ffs(dcbent->or) - 1) * 0x800;
311 if ((reg & 0x20000000) && !(dcbent->sorconf.link & 1))
312 reg += 0x00000080;
313 }
314
315 reg &= ~0x60000000;
316 return reg;
317}
318
319static int
320valid_reg(struct nvbios *bios, uint32_t reg)
321{
322 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
323 struct drm_device *dev = bios->dev;
324
325 /* C51 has misaligned regs on purpose. Marvellous */
9855e584 326 if (reg & 0x2 ||
04a39c57 327 (reg & 0x1 && dev_priv->vbios.chip_version != 0x51))
9855e584
BS		 328 NV_ERROR(dev, "======= misaligned reg 0x%08X =======\n", reg);
329
330 /* warn on C51 regs that haven't been verified accessible in tracing */
04a39c57 331 if (reg & 0x1 && dev_priv->vbios.chip_version == 0x51 &&
6ee73861
BS		 332 reg != 0x130d && reg != 0x1311 && reg != 0x60081d)
333 NV_WARN(dev, "=== C51 misaligned reg 0x%08X not verified ===\n",
334 reg);
335
9855e584
BS		 336 if (reg >= (8*1024*1024)) {
337 NV_ERROR(dev, "=== reg 0x%08x out of mapped bounds ===\n", reg);
338 return 0;
6ee73861 339 }
9855e584
BS		 340
341 return 1;
6ee73861
BS		 342}
343
344static bool
345valid_idx_port(struct nvbios *bios, uint16_t port)
346{
347 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
348 struct drm_device *dev = bios->dev;
349
350 /*
351 * If adding more ports here, the read/write functions below will need
352 * updating so that the correct mmio range (PRMCIO, PRMDIO, PRMVIO) is
353 * used for the port in question
354 */
355 if (dev_priv->card_type < NV_50) {
356 if (port == NV_CIO_CRX__COLOR)
357 return true;
358 if (port == NV_VIO_SRX)
359 return true;
360 } else {
361 if (port == NV_CIO_CRX__COLOR)
362 return true;
363 }
364
365 NV_ERROR(dev, "========== unknown indexed io port 0x%04X ==========\n",
366 port);
367
368 return false;
369}
370
371static bool
372valid_port(struct nvbios *bios, uint16_t port)
373{
374 struct drm_device *dev = bios->dev;
375
376 /*
377 * If adding more ports here, the read/write functions below will need
378 * updating so that the correct mmio range (PRMCIO, PRMDIO, PRMVIO) is
379 * used for the port in question
380 */
381 if (port == NV_VIO_VSE2)
382 return true;
383
384 NV_ERROR(dev, "========== unknown io port 0x%04X ==========\n", port);
385
386 return false;
387}
388
389static uint32_t
390bios_rd32(struct nvbios *bios, uint32_t reg)
391{
392 uint32_t data;
393
394 reg = munge_reg(bios, reg);
395 if (!valid_reg(bios, reg))
396 return 0;
397
398 /*
399 * C51 sometimes uses regs with bit0 set in the address. For these
400 * cases there should exist a translation in a BIOS table to an IO
401 * port address which the BIOS uses for accessing the reg
402 *
403 * These only seem to appear for the power control regs to a flat panel,
404 * and the GPIO regs at 0x60081*. In C51 mmio traces the normal regs
405 * for 0x1308 and 0x1310 are used - hence the mask below. An S3
406 * suspend-resume mmio trace from a C51 will be required to see if this
407 * is true for the power microcode in 0x14.., or whether the direct IO
408 * port access method is needed
409 */
410 if (reg & 0x1)
411 reg &= ~0x1;
412
413 data = nv_rd32(bios->dev, reg);
414
415 BIOSLOG(bios, " Read: Reg: 0x%08X, Data: 0x%08X\n", reg, data);
416
417 return data;
418}
419
420static void
421bios_wr32(struct nvbios *bios, uint32_t reg, uint32_t data)
422{
423 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
424
425 reg = munge_reg(bios, reg);
426 if (!valid_reg(bios, reg))
427 return;
428
429 /* see note in bios_rd32 */
430 if (reg & 0x1)
431 reg &= 0xfffffffe;
432
433 LOG_OLD_VALUE(bios_rd32(bios, reg));
434 BIOSLOG(bios, " Write: Reg: 0x%08X, Data: 0x%08X\n", reg, data);
435
04a39c57 436 if (dev_priv->vbios.execute) {
6ee73861
BS		 437 still_alive();
438 nv_wr32(bios->dev, reg, data);
439 }
440}
441
442static uint8_t
443bios_idxprt_rd(struct nvbios *bios, uint16_t port, uint8_t index)
444{
445 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
446 struct drm_device *dev = bios->dev;
447 uint8_t data;
448
449 if (!valid_idx_port(bios, port))
450 return 0;
451
452 if (dev_priv->card_type < NV_50) {
453 if (port == NV_VIO_SRX)
454 data = NVReadVgaSeq(dev, bios->state.crtchead, index);
455 else /* assume NV_CIO_CRX__COLOR */
456 data = NVReadVgaCrtc(dev, bios->state.crtchead, index);
457 } else {
458 uint32_t data32;
459
460 data32 = bios_rd32(bios, NV50_PDISPLAY_VGACRTC(index & ~3));
461 data = (data32 >> ((index & 3) << 3)) & 0xff;
462 }
463
464 BIOSLOG(bios, " Indexed IO read: Port: 0x%04X, Index: 0x%02X, "
465 "Head: 0x%02X, Data: 0x%02X\n",
466 port, index, bios->state.crtchead, data);
467 return data;
468}
469
470static void
471bios_idxprt_wr(struct nvbios *bios, uint16_t port, uint8_t index, uint8_t data)
472{
473 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
474 struct drm_device *dev = bios->dev;
475
476 if (!valid_idx_port(bios, port))
477 return;
478
479 /*
480 * The current head is maintained in the nvbios member state.crtchead.
481 * We trap changes to CR44 and update the head variable and hence the
482 * register set written.
483 * As CR44 only exists on CRTC0, we update crtchead to head0 in advance
484 * of the write, and to head1 after the write
485 */
486 if (port == NV_CIO_CRX__COLOR && index == NV_CIO_CRE_44 &&
487 data != NV_CIO_CRE_44_HEADB)
488 bios->state.crtchead = 0;
489
490 LOG_OLD_VALUE(bios_idxprt_rd(bios, port, index));
491 BIOSLOG(bios, " Indexed IO write: Port: 0x%04X, Index: 0x%02X, "
492 "Head: 0x%02X, Data: 0x%02X\n",
493 port, index, bios->state.crtchead, data);
494
495 if (bios->execute && dev_priv->card_type < NV_50) {
496 still_alive();
497 if (port == NV_VIO_SRX)
498 NVWriteVgaSeq(dev, bios->state.crtchead, index, data);
499 else /* assume NV_CIO_CRX__COLOR */
500 NVWriteVgaCrtc(dev, bios->state.crtchead, index, data);
501 } else
502 if (bios->execute) {
503 uint32_t data32, shift = (index & 3) << 3;
504
505 still_alive();
506
507 data32 = bios_rd32(bios, NV50_PDISPLAY_VGACRTC(index & ~3));
508 data32 &= ~(0xff << shift);
509 data32 |= (data << shift);
510 bios_wr32(bios, NV50_PDISPLAY_VGACRTC(index & ~3), data32);
511 }
512
513 if (port == NV_CIO_CRX__COLOR &&
514 index == NV_CIO_CRE_44 && data == NV_CIO_CRE_44_HEADB)
515 bios->state.crtchead = 1;
516}
517
518static uint8_t
519bios_port_rd(struct nvbios *bios, uint16_t port)
520{
521 uint8_t data, head = bios->state.crtchead;
522
523 if (!valid_port(bios, port))
524 return 0;
525
526 data = NVReadPRMVIO(bios->dev, head, NV_PRMVIO0_OFFSET + port);
527
528 BIOSLOG(bios, " IO read: Port: 0x%04X, Head: 0x%02X, Data: 0x%02X\n",
529 port, head, data);
530
531 return data;
532}
533
534static void
535bios_port_wr(struct nvbios *bios, uint16_t port, uint8_t data)
536{
537 int head = bios->state.crtchead;
538
539 if (!valid_port(bios, port))
540 return;
541
542 LOG_OLD_VALUE(bios_port_rd(bios, port));
543 BIOSLOG(bios, " IO write: Port: 0x%04X, Head: 0x%02X, Data: 0x%02X\n",
544 port, head, data);
545
546 if (!bios->execute)
547 return;
548
549 still_alive();
550 NVWritePRMVIO(bios->dev, head, NV_PRMVIO0_OFFSET + port, data);
551}
552
553static bool
554io_flag_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
555{
556 /*
557 * The IO flag condition entry has 2 bytes for the CRTC port; 1 byte
558 * for the CRTC index; 1 byte for the mask to apply to the value
559 * retrieved from the CRTC; 1 byte for the shift right to apply to the
560 * masked CRTC value; 2 bytes for the offset to the flag array, to
561 * which the shifted value is added; 1 byte for the mask applied to the
562 * value read from the flag array; and 1 byte for the value to compare
563 * against the masked byte from the flag table.
564 */
565
566 uint16_t condptr = bios->io_flag_condition_tbl_ptr + cond * IO_FLAG_CONDITION_SIZE;
567 uint16_t crtcport = ROM16(bios->data[condptr]);
568 uint8_t crtcindex = bios->data[condptr + 2];
569 uint8_t mask = bios->data[condptr + 3];
570 uint8_t shift = bios->data[condptr + 4];
571 uint16_t flagarray = ROM16(bios->data[condptr + 5]);
572 uint8_t flagarraymask = bios->data[condptr + 7];
573 uint8_t cmpval = bios->data[condptr + 8];
574 uint8_t data;
575
576 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
577 "Shift: 0x%02X, FlagArray: 0x%04X, FAMask: 0x%02X, "
578 "Cmpval: 0x%02X\n",
579 offset, crtcport, crtcindex, mask, shift, flagarray, flagarraymask, cmpval);
580
581 data = bios_idxprt_rd(bios, crtcport, crtcindex);
582
583 data = bios->data[flagarray + ((data & mask) >> shift)];
584 data &= flagarraymask;
585
586 BIOSLOG(bios, "0x%04X: Checking if 0x%02X equals 0x%02X\n",
587 offset, data, cmpval);
588
589 return (data == cmpval);
590}
591
592static bool
593bios_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
594{
595 /*
596 * The condition table entry has 4 bytes for the address of the
597 * register to check, 4 bytes for a mask to apply to the register and
598 * 4 for a test comparison value
599 */
600
601 uint16_t condptr = bios->condition_tbl_ptr + cond * CONDITION_SIZE;
602 uint32_t reg = ROM32(bios->data[condptr]);
603 uint32_t mask = ROM32(bios->data[condptr + 4]);
604 uint32_t cmpval = ROM32(bios->data[condptr + 8]);
605 uint32_t data;
606
607 BIOSLOG(bios, "0x%04X: Cond: 0x%02X, Reg: 0x%08X, Mask: 0x%08X\n",
608 offset, cond, reg, mask);
609
610 data = bios_rd32(bios, reg) & mask;
611
612 BIOSLOG(bios, "0x%04X: Checking if 0x%08X equals 0x%08X\n",
613 offset, data, cmpval);
614
615 return (data == cmpval);
616}
617
618static bool
619io_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
620{
621 /*
622 * The IO condition entry has 2 bytes for the IO port address; 1 byte
623 * for the index to write to io_port; 1 byte for the mask to apply to
624 * the byte read from io_port+1; and 1 byte for the value to compare
625 * against the masked byte.
626 */
627
628 uint16_t condptr = bios->io_condition_tbl_ptr + cond * IO_CONDITION_SIZE;
629 uint16_t io_port = ROM16(bios->data[condptr]);
630 uint8_t port_index = bios->data[condptr + 2];
631 uint8_t mask = bios->data[condptr + 3];
632 uint8_t cmpval = bios->data[condptr + 4];
633
634 uint8_t data = bios_idxprt_rd(bios, io_port, port_index) & mask;
635
636 BIOSLOG(bios, "0x%04X: Checking if 0x%02X equals 0x%02X\n",
637 offset, data, cmpval);
638
639 return (data == cmpval);
640}
641
642static int
643nv50_pll_set(struct drm_device *dev, uint32_t reg, uint32_t clk)
644{
645 struct drm_nouveau_private *dev_priv = dev->dev_private;
646 uint32_t reg0 = nv_rd32(dev, reg + 0);
647 uint32_t reg1 = nv_rd32(dev, reg + 4);
648 struct nouveau_pll_vals pll;
649 struct pll_lims pll_limits;
650 int ret;
651
652 ret = get_pll_limits(dev, reg, &pll_limits);
653 if (ret)
654 return ret;
655
656 clk = nouveau_calc_pll_mnp(dev, &pll_limits, clk, &pll);
657 if (!clk)
658 return -ERANGE;
659
660 reg0 = (reg0 & 0xfff8ffff) | (pll.log2P << 16);
661 reg1 = (reg1 & 0xffff0000) | (pll.N1 << 8) | pll.M1;
662
04a39c57 663 if (dev_priv->vbios.execute) {
6ee73861
BS		 664 still_alive();
665 nv_wr32(dev, reg + 4, reg1);
666 nv_wr32(dev, reg + 0, reg0);
667 }
668
669 return 0;
670}
671
672static int
673setPLL(struct nvbios *bios, uint32_t reg, uint32_t clk)
674{
675 struct drm_device *dev = bios->dev;
676 struct drm_nouveau_private *dev_priv = dev->dev_private;
677 /* clk in kHz */
678 struct pll_lims pll_lim;
679 struct nouveau_pll_vals pllvals;
680 int ret;
681
682 if (dev_priv->card_type >= NV_50)
683 return nv50_pll_set(dev, reg, clk);
684
685 /* high regs (such as in the mac g5 table) are not -= 4 */
686 ret = get_pll_limits(dev, reg > 0x405c ? reg : reg - 4, &pll_lim);
687 if (ret)
688 return ret;
689
690 clk = nouveau_calc_pll_mnp(dev, &pll_lim, clk, &pllvals);
691 if (!clk)
692 return -ERANGE;
693
694 if (bios->execute) {
695 still_alive();
696 nouveau_hw_setpll(dev, reg, &pllvals);
697 }
698
699 return 0;
700}
701
702static int dcb_entry_idx_from_crtchead(struct drm_device *dev)
703{
704 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 705 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 706
707 /*
708 * For the results of this function to be correct, CR44 must have been
709 * set (using bios_idxprt_wr to set crtchead), CR58 set for CR57 = 0,
710 * and the DCB table parsed, before the script calling the function is
711 * run. run_digital_op_script is example of how to do such setup
712 */
713
714 uint8_t dcb_entry = NVReadVgaCrtc5758(dev, bios->state.crtchead, 0);
715
7f245b20 716 if (dcb_entry > bios->dcb.entries) {
6ee73861
BS		 717 NV_ERROR(dev, "CR58 doesn't have a valid DCB entry currently "
718 "(%02X)\n", dcb_entry);
719 dcb_entry = 0x7f; /* unused / invalid marker */
720 }
721
722 return dcb_entry;
723}
724
f8b0be1a
BS		 725static int
726read_dcb_i2c_entry(struct drm_device *dev, int dcb_version, uint8_t *i2ctable, int index, struct dcb_i2c_entry *i2c)
727{
728 uint8_t dcb_i2c_ver = dcb_version, headerlen = 0, entry_len = 4;
729 int i2c_entries = DCB_MAX_NUM_I2C_ENTRIES;
730 int recordoffset = 0, rdofs = 1, wrofs = 0;
731 uint8_t port_type = 0;
732
733 if (!i2ctable)
734 return -EINVAL;
735
736 if (dcb_version >= 0x30) {
737 if (i2ctable[0] != dcb_version) /* necessary? */
738 NV_WARN(dev,
739 "DCB I2C table version mismatch (%02X vs %02X)\n",
740 i2ctable[0], dcb_version);
741 dcb_i2c_ver = i2ctable[0];
742 headerlen = i2ctable[1];
743 if (i2ctable[2] <= DCB_MAX_NUM_I2C_ENTRIES)
744 i2c_entries = i2ctable[2];
745 else
746 NV_WARN(dev,
747 "DCB I2C table has more entries than indexable "
748 "(%d entries, max %d)\n", i2ctable[2],
749 DCB_MAX_NUM_I2C_ENTRIES);
750 entry_len = i2ctable[3];
751 /* [4] is i2c_default_indices, read in parse_dcb_table() */
752 }
753 /*
754 * It's your own fault if you call this function on a DCB 1.1 BIOS --
755 * the test below is for DCB 1.2
756 */
757 if (dcb_version < 0x14) {
758 recordoffset = 2;
759 rdofs = 0;
760 wrofs = 1;
761 }
762
763 if (index == 0xf)
764 return 0;
765 if (index >= i2c_entries) {
766 NV_ERROR(dev, "DCB I2C index too big (%d >= %d)\n",
767 index, i2ctable[2]);
768 return -ENOENT;
769 }
770 if (i2ctable[headerlen + entry_len * index + 3] == 0xff) {
771 NV_ERROR(dev, "DCB I2C entry invalid\n");
772 return -EINVAL;
773 }
774
775 if (dcb_i2c_ver >= 0x30) {
776 port_type = i2ctable[headerlen + recordoffset + 3 + entry_len * index];
777
778 /*
779 * Fixup for chips using same address offset for read and
780 * write.
781 */
782 if (port_type == 4) /* seen on C51 */
783 rdofs = wrofs = 1;
784 if (port_type >= 5) /* G80+ */
785 rdofs = wrofs = 0;
786 }
787
788 if (dcb_i2c_ver >= 0x40) {
789 if (port_type != 5 && port_type != 6)
790 NV_WARN(dev, "DCB I2C table has port type %d\n", port_type);
791
792 i2c->entry = ROM32(i2ctable[headerlen + recordoffset + entry_len * index]);
793 }
794
795 i2c->port_type = port_type;
796 i2c->read = i2ctable[headerlen + recordoffset + rdofs + entry_len * index];
797 i2c->write = i2ctable[headerlen + recordoffset + wrofs + entry_len * index];
798
799 return 0;
800}
801
6ee73861
BS		 802static struct nouveau_i2c_chan *
803init_i2c_device_find(struct drm_device *dev, int i2c_index)
804{
805 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 806 struct dcb_table *dcb = &dev_priv->vbios.dcb;
6ee73861
BS		 807
808 if (i2c_index == 0xff) {
809 /* note: dcb_entry_idx_from_crtchead needs pre-script set-up */
810 int idx = dcb_entry_idx_from_crtchead(dev), shift = 0;
7f245b20 811 int default_indices = dcb->i2c_default_indices;
6ee73861 812
7f245b20 813 if (idx != 0x7f && dcb->entry[idx].i2c_upper_default)
6ee73861
BS		 814 shift = 4;
815
816 i2c_index = (default_indices >> shift) & 0xf;
817 }
818 if (i2c_index == 0x80) /* g80+ */
7f245b20 819 i2c_index = dcb->i2c_default_indices & 0xf;
04f542c0
BS		 820 else
821 if (i2c_index == 0x81)
822 i2c_index = (dcb->i2c_default_indices & 0xf0) >> 4;
6ee73861 823
75047944 824 if (i2c_index >= DCB_MAX_NUM_I2C_ENTRIES) {
f8b0be1a
BS		 825 NV_ERROR(dev, "invalid i2c_index 0x%x\n", i2c_index);
826 return NULL;
827 }
828
829 /* Make sure i2c table entry has been parsed, it may not
830 * have been if this is a bus not referenced by a DCB encoder
831 */
832 read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
833 i2c_index, &dcb->i2c[i2c_index]);
834
6ee73861
BS		 835 return nouveau_i2c_find(dev, i2c_index);
836}
837
7f245b20
BS		 838static uint32_t
839get_tmds_index_reg(struct drm_device *dev, uint8_t mlv)
6ee73861
BS		 840{
841 /*
842 * For mlv < 0x80, it is an index into a table of TMDS base addresses.
843 * For mlv == 0x80 use the "or" value of the dcb_entry indexed by
844 * CR58 for CR57 = 0 to index a table of offsets to the basic
845 * 0x6808b0 address.
846 * For mlv == 0x81 use the "or" value of the dcb_entry indexed by
847 * CR58 for CR57 = 0 to index a table of offsets to the basic
848 * 0x6808b0 address, and then flip the offset by 8.
849 */
850
851 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 852 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 853 const int pramdac_offset[13] = {
854 0, 0, 0x8, 0, 0x2000, 0, 0, 0, 0x2008, 0, 0, 0, 0x2000 };
855 const uint32_t pramdac_table[4] = {
856 0x6808b0, 0x6808b8, 0x6828b0, 0x6828b8 };
857
858 if (mlv >= 0x80) {
859 int dcb_entry, dacoffset;
860
861 /* note: dcb_entry_idx_from_crtchead needs pre-script set-up */
862 dcb_entry = dcb_entry_idx_from_crtchead(dev);
863 if (dcb_entry == 0x7f)
864 return 0;
7f245b20 865 dacoffset = pramdac_offset[bios->dcb.entry[dcb_entry].or];
6ee73861
BS		 866 if (mlv == 0x81)
867 dacoffset ^= 8;
868 return 0x6808b0 + dacoffset;
869 } else {
df31ef4d 870 if (mlv >= ARRAY_SIZE(pramdac_table)) {
6ee73861
BS		 871 NV_ERROR(dev, "Magic Lookup Value too big (%02X)\n",
872 mlv);
873 return 0;
874 }
875 return pramdac_table[mlv];
876 }
877}
878
37383650 879static int
6ee73861
BS		 880init_io_restrict_prog(struct nvbios *bios, uint16_t offset,
881 struct init_exec *iexec)
882{
883 /*
884 * INIT_IO_RESTRICT_PROG opcode: 0x32 ('2')
885 *
886 * offset (8 bit): opcode
887 * offset + 1 (16 bit): CRTC port
888 * offset + 3 (8 bit): CRTC index
889 * offset + 4 (8 bit): mask
890 * offset + 5 (8 bit): shift
891 * offset + 6 (8 bit): count
892 * offset + 7 (32 bit): register
893 * offset + 11 (32 bit): configuration 1
894 * ...
895 *
896 * Starting at offset + 11 there are "count" 32 bit values.
897 * To find out which value to use read index "CRTC index" on "CRTC
898 * port", AND this value with "mask" and then bit shift right "shift"
899 * bits. Read the appropriate value using this index and write to
900 * "register"
901 */
902
903 uint16_t crtcport = ROM16(bios->data[offset + 1]);
904 uint8_t crtcindex = bios->data[offset + 3];
905 uint8_t mask = bios->data[offset + 4];
906 uint8_t shift = bios->data[offset + 5];
907 uint8_t count = bios->data[offset + 6];
908 uint32_t reg = ROM32(bios->data[offset + 7]);
909 uint8_t config;
910 uint32_t configval;
37383650 911 int len = 11 + count * 4;
6ee73861
BS		 912
913 if (!iexec->execute)
37383650 914 return len;
6ee73861
BS		 915
916 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
917 "Shift: 0x%02X, Count: 0x%02X, Reg: 0x%08X\n",
918 offset, crtcport, crtcindex, mask, shift, count, reg);
919
920 config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
921 if (config > count) {
922 NV_ERROR(bios->dev,
923 "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
924 offset, config, count);
309b8c89 925 return len;
6ee73861
BS		 926 }
927
928 configval = ROM32(bios->data[offset + 11 + config * 4]);
929
930 BIOSLOG(bios, "0x%04X: Writing config %02X\n", offset, config);
931
932 bios_wr32(bios, reg, configval);
933
37383650 934 return len;
6ee73861
BS		 935}
936
37383650 937static int
6ee73861
BS		 938init_repeat(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
939{
940 /*
941 * INIT_REPEAT opcode: 0x33 ('3')
942 *
943 * offset (8 bit): opcode
944 * offset + 1 (8 bit): count
945 *
946 * Execute script following this opcode up to INIT_REPEAT_END
947 * "count" times
948 */
949
950 uint8_t count = bios->data[offset + 1];
951 uint8_t i;
952
953 /* no iexec->execute check by design */
954
955 BIOSLOG(bios, "0x%04X: Repeating following segment %d times\n",
956 offset, count);
957
958 iexec->repeat = true;
959
960 /*
961 * count - 1, as the script block will execute once when we leave this
962 * opcode -- this is compatible with bios behaviour as:
963 * a) the block is always executed at least once, even if count == 0
964 * b) the bios interpreter skips to the op following INIT_END_REPEAT,
965 * while we don't
966 */
967 for (i = 0; i < count - 1; i++)
968 parse_init_table(bios, offset + 2, iexec);
969
970 iexec->repeat = false;
971
37383650 972 return 2;
6ee73861
BS		 973}
974
37383650 975static int
6ee73861
BS		 976init_io_restrict_pll(struct nvbios *bios, uint16_t offset,
977 struct init_exec *iexec)
978{
979 /*
980 * INIT_IO_RESTRICT_PLL opcode: 0x34 ('4')
981 *
982 * offset (8 bit): opcode
983 * offset + 1 (16 bit): CRTC port
984 * offset + 3 (8 bit): CRTC index
985 * offset + 4 (8 bit): mask
986 * offset + 5 (8 bit): shift
987 * offset + 6 (8 bit): IO flag condition index
988 * offset + 7 (8 bit): count
989 * offset + 8 (32 bit): register
990 * offset + 12 (16 bit): frequency 1
991 * ...
992 *
993 * Starting at offset + 12 there are "count" 16 bit frequencies (10kHz).
994 * Set PLL register "register" to coefficients for frequency n,
995 * selected by reading index "CRTC index" of "CRTC port" ANDed with
996 * "mask" and shifted right by "shift".
997 *
998 * If "IO flag condition index" > 0, and condition met, double
999 * frequency before setting it.
1000 */
1001
1002 uint16_t crtcport = ROM16(bios->data[offset + 1]);
1003 uint8_t crtcindex = bios->data[offset + 3];
1004 uint8_t mask = bios->data[offset + 4];
1005 uint8_t shift = bios->data[offset + 5];
1006 int8_t io_flag_condition_idx = bios->data[offset + 6];
1007 uint8_t count = bios->data[offset + 7];
1008 uint32_t reg = ROM32(bios->data[offset + 8]);
1009 uint8_t config;
1010 uint16_t freq;
37383650 1011 int len = 12 + count * 2;
6ee73861
BS		 1012
1013 if (!iexec->execute)
37383650 1014 return len;
6ee73861
BS		 1015
1016 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
1017 "Shift: 0x%02X, IO Flag Condition: 0x%02X, "
1018 "Count: 0x%02X, Reg: 0x%08X\n",
1019 offset, crtcport, crtcindex, mask, shift,
1020 io_flag_condition_idx, count, reg);
1021
1022 config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
1023 if (config > count) {
1024 NV_ERROR(bios->dev,
1025 "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
1026 offset, config, count);
309b8c89 1027 return len;
6ee73861
BS		 1028 }
1029
1030 freq = ROM16(bios->data[offset + 12 + config * 2]);
1031
1032 if (io_flag_condition_idx > 0) {
1033 if (io_flag_condition_met(bios, offset, io_flag_condition_idx)) {
1034 BIOSLOG(bios, "0x%04X: Condition fulfilled -- "
1035 "frequency doubled\n", offset);
1036 freq *= 2;
1037 } else
1038 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- "
1039 "frequency unchanged\n", offset);
1040 }
1041
1042 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Config: 0x%02X, Freq: %d0kHz\n",
1043 offset, reg, config, freq);
1044
1045 setPLL(bios, reg, freq * 10);
1046
37383650 1047 return len;
6ee73861
BS		 1048}
1049
37383650 1050static int
6ee73861
BS		 1051init_end_repeat(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1052{
1053 /*
1054 * INIT_END_REPEAT opcode: 0x36 ('6')
1055 *
1056 * offset (8 bit): opcode
1057 *
1058 * Marks the end of the block for INIT_REPEAT to repeat
1059 */
1060
1061 /* no iexec->execute check by design */
1062
1063 /*
1064 * iexec->repeat flag necessary to go past INIT_END_REPEAT opcode when
1065 * we're not in repeat mode
1066 */
1067 if (iexec->repeat)
37383650 1068 return 0;
6ee73861 1069
37383650 1070 return 1;
6ee73861
BS		 1071}
1072
37383650 1073static int
6ee73861
BS		 1074init_copy(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1075{
1076 /*
1077 * INIT_COPY opcode: 0x37 ('7')
1078 *
1079 * offset (8 bit): opcode
1080 * offset + 1 (32 bit): register
1081 * offset + 5 (8 bit): shift
1082 * offset + 6 (8 bit): srcmask
1083 * offset + 7 (16 bit): CRTC port
1084 * offset + 9 (8 bit): CRTC index
1085 * offset + 10 (8 bit): mask
1086 *
1087 * Read index "CRTC index" on "CRTC port", AND with "mask", OR with
1088 * (REGVAL("register") >> "shift" & "srcmask") and write-back to CRTC
1089 * port
1090 */
1091
1092 uint32_t reg = ROM32(bios->data[offset + 1]);
1093 uint8_t shift = bios->data[offset + 5];
1094 uint8_t srcmask = bios->data[offset + 6];
1095 uint16_t crtcport = ROM16(bios->data[offset + 7]);
1096 uint8_t crtcindex = bios->data[offset + 9];
1097 uint8_t mask = bios->data[offset + 10];
1098 uint32_t data;
1099 uint8_t crtcdata;
1100
1101 if (!iexec->execute)
37383650 1102 return 11;
6ee73861
BS		 1103
1104 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Shift: 0x%02X, SrcMask: 0x%02X, "
1105 "Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X\n",
1106 offset, reg, shift, srcmask, crtcport, crtcindex, mask);
1107
1108 data = bios_rd32(bios, reg);
1109
1110 if (shift < 0x80)
1111 data >>= shift;
1112 else
1113 data <<= (0x100 - shift);
1114
1115 data &= srcmask;
1116
1117 crtcdata = bios_idxprt_rd(bios, crtcport, crtcindex) & mask;
1118 crtcdata |= (uint8_t)data;
1119 bios_idxprt_wr(bios, crtcport, crtcindex, crtcdata);
1120
37383650 1121 return 11;
6ee73861
BS		 1122}
1123
37383650 1124static int
6ee73861
BS		 1125init_not(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1126{
1127 /*
1128 * INIT_NOT opcode: 0x38 ('8')
1129 *
1130 * offset (8 bit): opcode
1131 *
1132 * Invert the current execute / no-execute condition (i.e. "else")
1133 */
1134 if (iexec->execute)
1135 BIOSLOG(bios, "0x%04X: ------ Skipping following commands ------\n", offset);
1136 else
1137 BIOSLOG(bios, "0x%04X: ------ Executing following commands ------\n", offset);
1138
1139 iexec->execute = !iexec->execute;
37383650 1140 return 1;
6ee73861
BS		 1141}
1142
37383650 1143static int
6ee73861
BS		 1144init_io_flag_condition(struct nvbios *bios, uint16_t offset,
1145 struct init_exec *iexec)
1146{
1147 /*
1148 * INIT_IO_FLAG_CONDITION opcode: 0x39 ('9')
1149 *
1150 * offset (8 bit): opcode
1151 * offset + 1 (8 bit): condition number
1152 *
1153 * Check condition "condition number" in the IO flag condition table.
1154 * If condition not met skip subsequent opcodes until condition is
1155 * inverted (INIT_NOT), or we hit INIT_RESUME
1156 */
1157
1158 uint8_t cond = bios->data[offset + 1];
1159
1160 if (!iexec->execute)
37383650 1161 return 2;
6ee73861
BS		 1162
1163 if (io_flag_condition_met(bios, offset, cond))
1164 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
1165 else {
1166 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
1167 iexec->execute = false;
1168 }
1169
37383650 1170 return 2;
6ee73861
BS		 1171}
1172
25908b77
BS		 1173static int
1174init_dp_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1175{
1176 /*
1177 * INIT_DP_CONDITION opcode: 0x3A ('')
1178 *
1179 * offset (8 bit): opcode
1180 * offset + 1 (8 bit): "sub" opcode
1181 * offset + 2 (8 bit): unknown
1182 *
1183 */
1184
1185 struct bit_displayport_encoder_table *dpe = NULL;
1186 struct dcb_entry *dcb = bios->display.output;
1187 struct drm_device *dev = bios->dev;
1188 uint8_t cond = bios->data[offset + 1];
1189 int dummy;
1190
1191 BIOSLOG(bios, "0x%04X: subop 0x%02X\n", offset, cond);
1192
1193 if (!iexec->execute)
1194 return 3;
1195
1196 dpe = nouveau_bios_dp_table(dev, dcb, &dummy);
1197 if (!dpe) {
1198 NV_ERROR(dev, "0x%04X: INIT_3A: no encoder table!!\n", offset);
309b8c89 1199 return 3;
25908b77
BS		 1200 }
1201
1202 switch (cond) {
1203 case 0:
1204 {
1205 struct dcb_connector_table_entry *ent =
1206 &bios->dcb.connector.entry[dcb->connector];
1207
1208 if (ent->type != DCB_CONNECTOR_eDP)
1209 iexec->execute = false;
1210 }
1211 break;
1212 case 1:
1213 case 2:
1214 if (!(dpe->unknown & cond))
1215 iexec->execute = false;
1216 break;
1217 case 5:
1218 {
1219 struct nouveau_i2c_chan *auxch;
1220 int ret;
1221
1222 auxch = nouveau_i2c_find(dev, bios->display.output->i2c_index);
309b8c89
BS		 1223 if (!auxch) {
1224 NV_ERROR(dev, "0x%04X: couldn't get auxch\n", offset);
1225 return 3;
1226 }
25908b77
BS		 1227
1228 ret = nouveau_dp_auxch(auxch, 9, 0xd, &cond, 1);
309b8c89
BS		 1229 if (ret) {
1230 NV_ERROR(dev, "0x%04X: auxch rd fail: %d\n", offset, ret);
1231 return 3;
1232 }
25908b77
BS		 1233
1234 if (cond & 1)
1235 iexec->execute = false;
1236 }
1237 break;
1238 default:
1239 NV_WARN(dev, "0x%04X: unknown INIT_3A op: %d\n", offset, cond);
1240 break;
1241 }
1242
1243 if (iexec->execute)
1244 BIOSLOG(bios, "0x%04X: continuing to execute\n", offset);
1245 else
1246 BIOSLOG(bios, "0x%04X: skipping following commands\n", offset);
1247
1248 return 3;
1249}
1250
1251static int
1252init_op_3b(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1253{
1254 /*
1255 * INIT_3B opcode: 0x3B ('')
1256 *
1257 * offset (8 bit): opcode
1258 * offset + 1 (8 bit): crtc index
1259 *
1260 */
1261
1262 uint8_t or = ffs(bios->display.output->or) - 1;
1263 uint8_t index = bios->data[offset + 1];
1264 uint8_t data;
1265
1266 if (!iexec->execute)
1267 return 2;
1268
1269 data = bios_idxprt_rd(bios, 0x3d4, index);
1270 bios_idxprt_wr(bios, 0x3d4, index, data & ~(1 << or));
1271 return 2;
1272}
1273
1274static int
1275init_op_3c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1276{
1277 /*
1278 * INIT_3C opcode: 0x3C ('')
1279 *
1280 * offset (8 bit): opcode
1281 * offset + 1 (8 bit): crtc index
1282 *
1283 */
1284
1285 uint8_t or = ffs(bios->display.output->or) - 1;
1286 uint8_t index = bios->data[offset + 1];
1287 uint8_t data;
1288
1289 if (!iexec->execute)
1290 return 2;
1291
1292 data = bios_idxprt_rd(bios, 0x3d4, index);
1293 bios_idxprt_wr(bios, 0x3d4, index, data | (1 << or));
1294 return 2;
1295}
1296
37383650 1297static int
6ee73861
BS		 1298init_idx_addr_latched(struct nvbios *bios, uint16_t offset,
1299 struct init_exec *iexec)
1300{
1301 /*
1302 * INIT_INDEX_ADDRESS_LATCHED opcode: 0x49 ('I')
1303 *
1304 * offset (8 bit): opcode
1305 * offset + 1 (32 bit): control register
1306 * offset + 5 (32 bit): data register
1307 * offset + 9 (32 bit): mask
1308 * offset + 13 (32 bit): data
1309 * offset + 17 (8 bit): count
1310 * offset + 18 (8 bit): address 1
1311 * offset + 19 (8 bit): data 1
1312 * ...
1313 *
1314 * For each of "count" address and data pairs, write "data n" to
1315 * "data register", read the current value of "control register",
1316 * and write it back once ANDed with "mask", ORed with "data",
1317 * and ORed with "address n"
1318 */
1319
1320 uint32_t controlreg = ROM32(bios->data[offset + 1]);
1321 uint32_t datareg = ROM32(bios->data[offset + 5]);
1322 uint32_t mask = ROM32(bios->data[offset + 9]);
1323 uint32_t data = ROM32(bios->data[offset + 13]);
1324 uint8_t count = bios->data[offset + 17];
37383650 1325 int len = 18 + count * 2;
6ee73861
BS		 1326 uint32_t value;
1327 int i;
1328
1329 if (!iexec->execute)
37383650 1330 return len;
6ee73861
BS		 1331
1332 BIOSLOG(bios, "0x%04X: ControlReg: 0x%08X, DataReg: 0x%08X, "
1333 "Mask: 0x%08X, Data: 0x%08X, Count: 0x%02X\n",
1334 offset, controlreg, datareg, mask, data, count);
1335
1336 for (i = 0; i < count; i++) {
1337 uint8_t instaddress = bios->data[offset + 18 + i * 2];
1338 uint8_t instdata = bios->data[offset + 19 + i * 2];
1339
1340 BIOSLOG(bios, "0x%04X: Address: 0x%02X, Data: 0x%02X\n",
1341 offset, instaddress, instdata);
1342
1343 bios_wr32(bios, datareg, instdata);
1344 value = bios_rd32(bios, controlreg) & mask;
1345 value |= data;
1346 value |= instaddress;
1347 bios_wr32(bios, controlreg, value);
1348 }
1349
37383650 1350 return len;
6ee73861
BS		 1351}
1352
37383650 1353static int
6ee73861
BS		 1354init_io_restrict_pll2(struct nvbios *bios, uint16_t offset,
1355 struct init_exec *iexec)
1356{
1357 /*
1358 * INIT_IO_RESTRICT_PLL2 opcode: 0x4A ('J')
1359 *
1360 * offset (8 bit): opcode
1361 * offset + 1 (16 bit): CRTC port
1362 * offset + 3 (8 bit): CRTC index
1363 * offset + 4 (8 bit): mask
1364 * offset + 5 (8 bit): shift
1365 * offset + 6 (8 bit): count
1366 * offset + 7 (32 bit): register
1367 * offset + 11 (32 bit): frequency 1
1368 * ...
1369 *
1370 * Starting at offset + 11 there are "count" 32 bit frequencies (kHz).
1371 * Set PLL register "register" to coefficients for frequency n,
1372 * selected by reading index "CRTC index" of "CRTC port" ANDed with
1373 * "mask" and shifted right by "shift".
1374 */
1375
1376 uint16_t crtcport = ROM16(bios->data[offset + 1]);
1377 uint8_t crtcindex = bios->data[offset + 3];
1378 uint8_t mask = bios->data[offset + 4];
1379 uint8_t shift = bios->data[offset + 5];
1380 uint8_t count = bios->data[offset + 6];
1381 uint32_t reg = ROM32(bios->data[offset + 7]);
37383650 1382 int len = 11 + count * 4;
6ee73861
BS		 1383 uint8_t config;
1384 uint32_t freq;
1385
1386 if (!iexec->execute)
37383650 1387 return len;
6ee73861
BS		 1388
1389 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
1390 "Shift: 0x%02X, Count: 0x%02X, Reg: 0x%08X\n",
1391 offset, crtcport, crtcindex, mask, shift, count, reg);
1392
1393 if (!reg)
37383650 1394 return len;
6ee73861
BS		 1395
1396 config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
1397 if (config > count) {
1398 NV_ERROR(bios->dev,
1399 "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
1400 offset, config, count);
309b8c89 1401 return len;
6ee73861
BS		 1402 }
1403
1404 freq = ROM32(bios->data[offset + 11 + config * 4]);
1405
1406 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Config: 0x%02X, Freq: %dkHz\n",
1407 offset, reg, config, freq);
1408
1409 setPLL(bios, reg, freq);
1410
37383650 1411 return len;
6ee73861
BS		 1412}
1413
37383650 1414static int
6ee73861
BS		 1415init_pll2(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1416{
1417 /*
1418 * INIT_PLL2 opcode: 0x4B ('K')
1419 *
1420 * offset (8 bit): opcode
1421 * offset + 1 (32 bit): register
1422 * offset + 5 (32 bit): freq
1423 *
1424 * Set PLL register "register" to coefficients for frequency "freq"
1425 */
1426
1427 uint32_t reg = ROM32(bios->data[offset + 1]);
1428 uint32_t freq = ROM32(bios->data[offset + 5]);
1429
1430 if (!iexec->execute)
37383650 1431 return 9;
6ee73861
BS		 1432
1433 BIOSLOG(bios, "0x%04X: Reg: 0x%04X, Freq: %dkHz\n",
1434 offset, reg, freq);
1435
1436 setPLL(bios, reg, freq);
37383650 1437 return 9;
6ee73861
BS		 1438}
1439
37383650 1440static int
6ee73861
BS		 1441init_i2c_byte(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1442{
1443 /*
1444 * INIT_I2C_BYTE opcode: 0x4C ('L')
1445 *
1446 * offset (8 bit): opcode
1447 * offset + 1 (8 bit): DCB I2C table entry index
1448 * offset + 2 (8 bit): I2C slave address
1449 * offset + 3 (8 bit): count
1450 * offset + 4 (8 bit): I2C register 1
1451 * offset + 5 (8 bit): mask 1
1452 * offset + 6 (8 bit): data 1
1453 * ...
1454 *
1455 * For each of "count" registers given by "I2C register n" on the device
1456 * addressed by "I2C slave address" on the I2C bus given by
1457 * "DCB I2C table entry index", read the register, AND the result with
1458 * "mask n" and OR it with "data n" before writing it back to the device
1459 */
1460
309b8c89 1461 struct drm_device *dev = bios->dev;
6ee73861 1462 uint8_t i2c_index = bios->data[offset + 1];
893887ed 1463 uint8_t i2c_address = bios->data[offset + 2] >> 1;
6ee73861
BS		 1464 uint8_t count = bios->data[offset + 3];
1465 struct nouveau_i2c_chan *chan;
893887ed
BS		 1466 int len = 4 + count * 3;
1467 int ret, i;
6ee73861
BS		 1468
1469 if (!iexec->execute)
37383650 1470 return len;
6ee73861
BS		 1471
1472 BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
1473 "Count: 0x%02X\n",
1474 offset, i2c_index, i2c_address, count);
1475
309b8c89
BS		 1476 chan = init_i2c_device_find(dev, i2c_index);
1477 if (!chan) {
1478 NV_ERROR(dev, "0x%04X: i2c bus not found\n", offset);
1479 return len;
1480 }
6ee73861
BS		 1481
1482 for (i = 0; i < count; i++) {
893887ed 1483 uint8_t reg = bios->data[offset + 4 + i * 3];
6ee73861
BS		 1484 uint8_t mask = bios->data[offset + 5 + i * 3];
1485 uint8_t data = bios->data[offset + 6 + i * 3];
893887ed 1486 union i2c_smbus_data val;
6ee73861 1487
893887ed
BS		 1488 ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
1489 I2C_SMBUS_READ, reg,
1490 I2C_SMBUS_BYTE_DATA, &val);
309b8c89
BS		 1491 if (ret < 0) {
1492 NV_ERROR(dev, "0x%04X: i2c rd fail: %d\n", offset, ret);
1493 return len;
1494 }
6ee73861
BS		 1495
1496 BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Value: 0x%02X, "
1497 "Mask: 0x%02X, Data: 0x%02X\n",
893887ed 1498 offset, reg, val.byte, mask, data);
6ee73861 1499
893887ed
BS		 1500 if (!bios->execute)
1501 continue;
6ee73861 1502
893887ed
BS		 1503 val.byte &= mask;
1504 val.byte |= data;
1505 ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
1506 I2C_SMBUS_WRITE, reg,
1507 I2C_SMBUS_BYTE_DATA, &val);
309b8c89
BS		 1508 if (ret < 0) {
1509 NV_ERROR(dev, "0x%04X: i2c wr fail: %d\n", offset, ret);
1510 return len;
1511 }
6ee73861
BS		 1512 }
1513
37383650 1514 return len;
6ee73861
BS		 1515}
1516
37383650 1517static int
6ee73861
BS		 1518init_zm_i2c_byte(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1519{
1520 /*
1521 * INIT_ZM_I2C_BYTE opcode: 0x4D ('M')
1522 *
1523 * offset (8 bit): opcode
1524 * offset + 1 (8 bit): DCB I2C table entry index
1525 * offset + 2 (8 bit): I2C slave address
1526 * offset + 3 (8 bit): count
1527 * offset + 4 (8 bit): I2C register 1
1528 * offset + 5 (8 bit): data 1
1529 * ...
1530 *
1531 * For each of "count" registers given by "I2C register n" on the device
1532 * addressed by "I2C slave address" on the I2C bus given by
1533 * "DCB I2C table entry index", set the register to "data n"
1534 */
1535
309b8c89 1536 struct drm_device *dev = bios->dev;
6ee73861 1537 uint8_t i2c_index = bios->data[offset + 1];
893887ed 1538 uint8_t i2c_address = bios->data[offset + 2] >> 1;
6ee73861
BS		 1539 uint8_t count = bios->data[offset + 3];
1540 struct nouveau_i2c_chan *chan;
893887ed
BS		 1541 int len = 4 + count * 2;
1542 int ret, i;
6ee73861
BS		 1543
1544 if (!iexec->execute)
37383650 1545 return len;
6ee73861
BS		 1546
1547 BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
1548 "Count: 0x%02X\n",
1549 offset, i2c_index, i2c_address, count);
1550
309b8c89
BS		 1551 chan = init_i2c_device_find(dev, i2c_index);
1552 if (!chan) {
1553 NV_ERROR(dev, "0x%04X: i2c bus not found\n", offset);
1554 return len;
1555 }
6ee73861
BS		 1556
1557 for (i = 0; i < count; i++) {
893887ed
BS		 1558 uint8_t reg = bios->data[offset + 4 + i * 2];
1559 union i2c_smbus_data val;
1560
1561 val.byte = bios->data[offset + 5 + i * 2];
6ee73861
BS		 1562
1563 BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Data: 0x%02X\n",
893887ed
BS		 1564 offset, reg, val.byte);
1565
1566 if (!bios->execute)
1567 continue;
1568
1569 ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
1570 I2C_SMBUS_WRITE, reg,
1571 I2C_SMBUS_BYTE_DATA, &val);
309b8c89
BS		 1572 if (ret < 0) {
1573 NV_ERROR(dev, "0x%04X: i2c wr fail: %d\n", offset, ret);
1574 return len;
1575 }
6ee73861
BS		 1576 }
1577
37383650 1578 return len;
6ee73861
BS		 1579}
1580
37383650 1581static int
6ee73861
BS		 1582init_zm_i2c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1583{
1584 /*
1585 * INIT_ZM_I2C opcode: 0x4E ('N')
1586 *
1587 * offset (8 bit): opcode
1588 * offset + 1 (8 bit): DCB I2C table entry index
1589 * offset + 2 (8 bit): I2C slave address
1590 * offset + 3 (8 bit): count
1591 * offset + 4 (8 bit): data 1
1592 * ...
1593 *
1594 * Send "count" bytes ("data n") to the device addressed by "I2C slave
1595 * address" on the I2C bus given by "DCB I2C table entry index"
1596 */
1597
309b8c89 1598 struct drm_device *dev = bios->dev;
6ee73861 1599 uint8_t i2c_index = bios->data[offset + 1];
893887ed 1600 uint8_t i2c_address = bios->data[offset + 2] >> 1;
6ee73861 1601 uint8_t count = bios->data[offset + 3];
37383650 1602 int len = 4 + count;
6ee73861
BS		 1603 struct nouveau_i2c_chan *chan;
1604 struct i2c_msg msg;
1605 uint8_t data[256];
309b8c89 1606 int ret, i;
6ee73861
BS		 1607
1608 if (!iexec->execute)
37383650 1609 return len;
6ee73861
BS		 1610
1611 BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
1612 "Count: 0x%02X\n",
1613 offset, i2c_index, i2c_address, count);
1614
309b8c89
BS		 1615 chan = init_i2c_device_find(dev, i2c_index);
1616 if (!chan) {
1617 NV_ERROR(dev, "0x%04X: i2c bus not found\n", offset);
1618 return len;
1619 }
6ee73861
BS		 1620
1621 for (i = 0; i < count; i++) {
1622 data[i] = bios->data[offset + 4 + i];
1623
1624 BIOSLOG(bios, "0x%04X: Data: 0x%02X\n", offset, data[i]);
1625 }
1626
1627 if (bios->execute) {
1628 msg.addr = i2c_address;
1629 msg.flags = 0;
1630 msg.len = count;
1631 msg.buf = data;
309b8c89
BS		 1632 ret = i2c_transfer(&chan->adapter, &msg, 1);
1633 if (ret != 1) {
1634 NV_ERROR(dev, "0x%04X: i2c wr fail: %d\n", offset, ret);
1635 return len;
1636 }
6ee73861
BS		 1637 }
1638
37383650 1639 return len;
6ee73861
BS		 1640}
1641
37383650 1642static int
6ee73861
BS		 1643init_tmds(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1644{
1645 /*
1646 * INIT_TMDS opcode: 0x4F ('O') (non-canon name)
1647 *
1648 * offset (8 bit): opcode
1649 * offset + 1 (8 bit): magic lookup value
1650 * offset + 2 (8 bit): TMDS address
1651 * offset + 3 (8 bit): mask
1652 * offset + 4 (8 bit): data
1653 *
1654 * Read the data reg for TMDS address "TMDS address", AND it with mask
1655 * and OR it with data, then write it back
1656 * "magic lookup value" determines which TMDS base address register is
1657 * used -- see get_tmds_index_reg()
1658 */
1659
309b8c89 1660 struct drm_device *dev = bios->dev;
6ee73861
BS		 1661 uint8_t mlv = bios->data[offset + 1];
1662 uint32_t tmdsaddr = bios->data[offset + 2];
1663 uint8_t mask = bios->data[offset + 3];
1664 uint8_t data = bios->data[offset + 4];
1665 uint32_t reg, value;
1666
1667 if (!iexec->execute)
37383650 1668 return 5;
6ee73861
BS		 1669
1670 BIOSLOG(bios, "0x%04X: MagicLookupValue: 0x%02X, TMDSAddr: 0x%02X, "
1671 "Mask: 0x%02X, Data: 0x%02X\n",
1672 offset, mlv, tmdsaddr, mask, data);
1673
1674 reg = get_tmds_index_reg(bios->dev, mlv);
309b8c89
BS		 1675 if (!reg) {
1676 NV_ERROR(dev, "0x%04X: no tmds_index_reg\n", offset);
1677 return 5;
1678 }
6ee73861
BS		 1679
1680 bios_wr32(bios, reg,
1681 tmdsaddr | NV_PRAMDAC_FP_TMDS_CONTROL_WRITE_DISABLE);
1682 value = (bios_rd32(bios, reg + 4) & mask) | data;
1683 bios_wr32(bios, reg + 4, value);
1684 bios_wr32(bios, reg, tmdsaddr);
1685
37383650 1686 return 5;
6ee73861
BS		 1687}
1688
37383650 1689static int
6ee73861
BS		 1690init_zm_tmds_group(struct nvbios *bios, uint16_t offset,
1691 struct init_exec *iexec)
1692{
1693 /*
1694 * INIT_ZM_TMDS_GROUP opcode: 0x50 ('P') (non-canon name)
1695 *
1696 * offset (8 bit): opcode
1697 * offset + 1 (8 bit): magic lookup value
1698 * offset + 2 (8 bit): count
1699 * offset + 3 (8 bit): addr 1
1700 * offset + 4 (8 bit): data 1
1701 * ...
1702 *
1703 * For each of "count" TMDS address and data pairs write "data n" to
1704 * "addr n". "magic lookup value" determines which TMDS base address
1705 * register is used -- see get_tmds_index_reg()
1706 */
1707
309b8c89 1708 struct drm_device *dev = bios->dev;
6ee73861
BS		 1709 uint8_t mlv = bios->data[offset + 1];
1710 uint8_t count = bios->data[offset + 2];
37383650 1711 int len = 3 + count * 2;
6ee73861
BS		 1712 uint32_t reg;
1713 int i;
1714
1715 if (!iexec->execute)
37383650 1716 return len;
6ee73861
BS		 1717
1718 BIOSLOG(bios, "0x%04X: MagicLookupValue: 0x%02X, Count: 0x%02X\n",
1719 offset, mlv, count);
1720
1721 reg = get_tmds_index_reg(bios->dev, mlv);
309b8c89
BS		 1722 if (!reg) {
1723 NV_ERROR(dev, "0x%04X: no tmds_index_reg\n", offset);
1724 return len;
1725 }
6ee73861
BS		 1726
1727 for (i = 0; i < count; i++) {
1728 uint8_t tmdsaddr = bios->data[offset + 3 + i * 2];
1729 uint8_t tmdsdata = bios->data[offset + 4 + i * 2];
1730
1731 bios_wr32(bios, reg + 4, tmdsdata);
1732 bios_wr32(bios, reg, tmdsaddr);
1733 }
1734
37383650 1735 return len;
6ee73861
BS		 1736}
1737
37383650 1738static int
6ee73861
BS		 1739init_cr_idx_adr_latch(struct nvbios *bios, uint16_t offset,
1740 struct init_exec *iexec)
1741{
1742 /*
1743 * INIT_CR_INDEX_ADDRESS_LATCHED opcode: 0x51 ('Q')
1744 *
1745 * offset (8 bit): opcode
1746 * offset + 1 (8 bit): CRTC index1
1747 * offset + 2 (8 bit): CRTC index2
1748 * offset + 3 (8 bit): baseaddr
1749 * offset + 4 (8 bit): count
1750 * offset + 5 (8 bit): data 1
1751 * ...
1752 *
1753 * For each of "count" address and data pairs, write "baseaddr + n" to
1754 * "CRTC index1" and "data n" to "CRTC index2"
1755 * Once complete, restore initial value read from "CRTC index1"
1756 */
1757 uint8_t crtcindex1 = bios->data[offset + 1];
1758 uint8_t crtcindex2 = bios->data[offset + 2];
1759 uint8_t baseaddr = bios->data[offset + 3];
1760 uint8_t count = bios->data[offset + 4];
37383650 1761 int len = 5 + count;
6ee73861
BS		 1762 uint8_t oldaddr, data;
1763 int i;
1764
1765 if (!iexec->execute)
37383650 1766 return len;
6ee73861
BS		 1767
1768 BIOSLOG(bios, "0x%04X: Index1: 0x%02X, Index2: 0x%02X, "
1769 "BaseAddr: 0x%02X, Count: 0x%02X\n",
1770 offset, crtcindex1, crtcindex2, baseaddr, count);
1771
1772 oldaddr = bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, crtcindex1);
1773
1774 for (i = 0; i < count; i++) {
1775 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex1,
1776 baseaddr + i);
1777 data = bios->data[offset + 5 + i];
1778 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex2, data);
1779 }
1780
1781 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex1, oldaddr);
1782
37383650 1783 return len;
6ee73861
BS		 1784}
1785
37383650 1786static int
6ee73861
BS		 1787init_cr(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1788{
1789 /*
1790 * INIT_CR opcode: 0x52 ('R')
1791 *
1792 * offset (8 bit): opcode
1793 * offset + 1 (8 bit): CRTC index
1794 * offset + 2 (8 bit): mask
1795 * offset + 3 (8 bit): data
1796 *
1797 * Assign the value of at "CRTC index" ANDed with mask and ORed with
1798 * data back to "CRTC index"
1799 */
1800
1801 uint8_t crtcindex = bios->data[offset + 1];
1802 uint8_t mask = bios->data[offset + 2];
1803 uint8_t data = bios->data[offset + 3];
1804 uint8_t value;
1805
1806 if (!iexec->execute)
37383650 1807 return 4;
6ee73861
BS		 1808
1809 BIOSLOG(bios, "0x%04X: Index: 0x%02X, Mask: 0x%02X, Data: 0x%02X\n",
1810 offset, crtcindex, mask, data);
1811
1812 value = bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, crtcindex) & mask;
1813 value |= data;
1814 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex, value);
1815
37383650 1816 return 4;
6ee73861
BS		 1817}
1818
37383650 1819static int
6ee73861
BS		 1820init_zm_cr(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1821{
1822 /*
1823 * INIT_ZM_CR opcode: 0x53 ('S')
1824 *
1825 * offset (8 bit): opcode
1826 * offset + 1 (8 bit): CRTC index
1827 * offset + 2 (8 bit): value
1828 *
1829 * Assign "value" to CRTC register with index "CRTC index".
1830 */
1831
1832 uint8_t crtcindex = ROM32(bios->data[offset + 1]);
1833 uint8_t data = bios->data[offset + 2];
1834
1835 if (!iexec->execute)
37383650 1836 return 3;
6ee73861
BS		 1837
1838 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex, data);
1839
37383650 1840 return 3;
6ee73861
BS		 1841}
1842
37383650 1843static int
6ee73861
BS		 1844init_zm_cr_group(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1845{
1846 /*
1847 * INIT_ZM_CR_GROUP opcode: 0x54 ('T')
1848 *
1849 * offset (8 bit): opcode
1850 * offset + 1 (8 bit): count
1851 * offset + 2 (8 bit): CRTC index 1
1852 * offset + 3 (8 bit): value 1
1853 * ...
1854 *
1855 * For "count", assign "value n" to CRTC register with index
1856 * "CRTC index n".
1857 */
1858
1859 uint8_t count = bios->data[offset + 1];
37383650 1860 int len = 2 + count * 2;
6ee73861
BS		 1861 int i;
1862
1863 if (!iexec->execute)
37383650 1864 return len;
6ee73861
BS		 1865
1866 for (i = 0; i < count; i++)
1867 init_zm_cr(bios, offset + 2 + 2 * i - 1, iexec);
1868
37383650 1869 return len;
6ee73861
BS		 1870}
1871
37383650 1872static int
6ee73861
BS		 1873init_condition_time(struct nvbios *bios, uint16_t offset,
1874 struct init_exec *iexec)
1875{
1876 /*
1877 * INIT_CONDITION_TIME opcode: 0x56 ('V')
1878 *
1879 * offset (8 bit): opcode
1880 * offset + 1 (8 bit): condition number
1881 * offset + 2 (8 bit): retries / 50
1882 *
1883 * Check condition "condition number" in the condition table.
1884 * Bios code then sleeps for 2ms if the condition is not met, and
1885 * repeats up to "retries" times, but on one C51 this has proved
1886 * insufficient. In mmiotraces the driver sleeps for 20ms, so we do
1887 * this, and bail after "retries" times, or 2s, whichever is less.
1888 * If still not met after retries, clear execution flag for this table.
1889 */
1890
1891 uint8_t cond = bios->data[offset + 1];
1892 uint16_t retries = bios->data[offset + 2] * 50;
1893 unsigned cnt;
1894
1895 if (!iexec->execute)
37383650 1896 return 3;
6ee73861
BS		 1897
1898 if (retries > 100)
1899 retries = 100;
1900
1901 BIOSLOG(bios, "0x%04X: Condition: 0x%02X, Retries: 0x%02X\n",
1902 offset, cond, retries);
1903
1904 if (!bios->execute) /* avoid 2s delays when "faking" execution */
1905 retries = 1;
1906
1907 for (cnt = 0; cnt < retries; cnt++) {
1908 if (bios_condition_met(bios, offset, cond)) {
1909 BIOSLOG(bios, "0x%04X: Condition met, continuing\n",
1910 offset);
1911 break;
1912 } else {
1913 BIOSLOG(bios, "0x%04X: "
1914 "Condition not met, sleeping for 20ms\n",
1915 offset);
1916 msleep(20);
1917 }
1918 }
1919
1920 if (!bios_condition_met(bios, offset, cond)) {
1921 NV_WARN(bios->dev,
1922 "0x%04X: Condition still not met after %dms, "
1923 "skipping following opcodes\n", offset, 20 * retries);
1924 iexec->execute = false;
1925 }
1926
37383650 1927 return 3;
6ee73861
BS		 1928}
1929
e3a1924f
MK		 1930static int
1931init_ltime(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1932{
1933 /*
1934 * INIT_LTIME opcode: 0x57 ('V')
1935 *
1936 * offset (8 bit): opcode
1937 * offset + 1 (16 bit): time
1938 *
1939 * Sleep for "time" miliseconds.
1940 */
1941
1942 unsigned time = ROM16(bios->data[offset + 1]);
1943
1944 if (!iexec->execute)
1945 return 3;
1946
1947 BIOSLOG(bios, "0x%04X: Sleeping for 0x%04X miliseconds\n",
1948 offset, time);
1949
1950 msleep(time);
1951
1952 return 3;
1953}
1954
37383650 1955static int
6ee73861
BS		 1956init_zm_reg_sequence(struct nvbios *bios, uint16_t offset,
1957 struct init_exec *iexec)
1958{
1959 /*
1960 * INIT_ZM_REG_SEQUENCE opcode: 0x58 ('X')
1961 *
1962 * offset (8 bit): opcode
1963 * offset + 1 (32 bit): base register
1964 * offset + 5 (8 bit): count
1965 * offset + 6 (32 bit): value 1
1966 * ...
1967 *
1968 * Starting at offset + 6 there are "count" 32 bit values.
1969 * For "count" iterations set "base register" + 4 * current_iteration
1970 * to "value current_iteration"
1971 */
1972
1973 uint32_t basereg = ROM32(bios->data[offset + 1]);
1974 uint32_t count = bios->data[offset + 5];
37383650 1975 int len = 6 + count * 4;
6ee73861
BS		 1976 int i;
1977
1978 if (!iexec->execute)
37383650 1979 return len;
6ee73861
BS		 1980
1981 BIOSLOG(bios, "0x%04X: BaseReg: 0x%08X, Count: 0x%02X\n",
1982 offset, basereg, count);
1983
1984 for (i = 0; i < count; i++) {
1985 uint32_t reg = basereg + i * 4;
1986 uint32_t data = ROM32(bios->data[offset + 6 + i * 4]);
1987
1988 bios_wr32(bios, reg, data);
1989 }
1990
37383650 1991 return len;
6ee73861
BS		 1992}
1993
37383650 1994static int
6ee73861
BS		 1995init_sub_direct(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1996{
1997 /*
1998 * INIT_SUB_DIRECT opcode: 0x5B ('[')
1999 *
2000 * offset (8 bit): opcode
2001 * offset + 1 (16 bit): subroutine offset (in bios)
2002 *
2003 * Calls a subroutine that will execute commands until INIT_DONE
2004 * is found.
2005 */
2006
2007 uint16_t sub_offset = ROM16(bios->data[offset + 1]);
2008
2009 if (!iexec->execute)
37383650 2010 return 3;
6ee73861
BS		 2011
2012 BIOSLOG(bios, "0x%04X: Executing subroutine at 0x%04X\n",
2013 offset, sub_offset);
2014
2015 parse_init_table(bios, sub_offset, iexec);
2016
2017 BIOSLOG(bios, "0x%04X: End of 0x%04X subroutine\n", offset, sub_offset);
2018
37383650 2019 return 3;
6ee73861
BS		 2020}
2021
b715d640
MK		 2022static int
2023init_i2c_if(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2024{
2025 /*
2026 * INIT_I2C_IF opcode: 0x5E ('^')
2027 *
2028 * offset (8 bit): opcode
2029 * offset + 1 (8 bit): DCB I2C table entry index
2030 * offset + 2 (8 bit): I2C slave address
2031 * offset + 3 (8 bit): I2C register
2032 * offset + 4 (8 bit): mask
2033 * offset + 5 (8 bit): data
2034 *
2035 * Read the register given by "I2C register" on the device addressed
2036 * by "I2C slave address" on the I2C bus given by "DCB I2C table
2037 * entry index". Compare the result AND "mask" to "data".
2038 * If they're not equal, skip subsequent opcodes until condition is
2039 * inverted (INIT_NOT), or we hit INIT_RESUME
2040 */
2041
2042 uint8_t i2c_index = bios->data[offset + 1];
2043 uint8_t i2c_address = bios->data[offset + 2] >> 1;
2044 uint8_t reg = bios->data[offset + 3];
2045 uint8_t mask = bios->data[offset + 4];
2046 uint8_t data = bios->data[offset + 5];
2047 struct nouveau_i2c_chan *chan;
2048 union i2c_smbus_data val;
2049 int ret;
2050
2051 /* no execute check by design */
2052
2053 BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X\n",
2054 offset, i2c_index, i2c_address);
2055
2056 chan = init_i2c_device_find(bios->dev, i2c_index);
2057 if (!chan)
2058 return -ENODEV;
2059
2060 ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
2061 I2C_SMBUS_READ, reg,
2062 I2C_SMBUS_BYTE_DATA, &val);
2063 if (ret < 0) {
2064 BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Value: [no device], "
2065 "Mask: 0x%02X, Data: 0x%02X\n",
2066 offset, reg, mask, data);
2067 iexec->execute = 0;
2068 return 6;
2069 }
2070
2071 BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Value: 0x%02X, "
2072 "Mask: 0x%02X, Data: 0x%02X\n",
2073 offset, reg, val.byte, mask, data);
2074
2075 iexec->execute = ((val.byte & mask) == data);
2076
2077 return 6;
2078}
2079
37383650 2080static int
6ee73861
BS		 2081init_copy_nv_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2082{
2083 /*
2084 * INIT_COPY_NV_REG opcode: 0x5F ('_')
2085 *
2086 * offset (8 bit): opcode
2087 * offset + 1 (32 bit): src reg
2088 * offset + 5 (8 bit): shift
2089 * offset + 6 (32 bit): src mask
2090 * offset + 10 (32 bit): xor
2091 * offset + 14 (32 bit): dst reg
2092 * offset + 18 (32 bit): dst mask
2093 *
2094 * Shift REGVAL("src reg") right by (signed) "shift", AND result with
2095 * "src mask", then XOR with "xor". Write this OR'd with
2096 * (REGVAL("dst reg") AND'd with "dst mask") to "dst reg"
2097 */
2098
2099 uint32_t srcreg = *((uint32_t *)(&bios->data[offset + 1]));
2100 uint8_t shift = bios->data[offset + 5];
2101 uint32_t srcmask = *((uint32_t *)(&bios->data[offset + 6]));
2102 uint32_t xor = *((uint32_t *)(&bios->data[offset + 10]));
2103 uint32_t dstreg = *((uint32_t *)(&bios->data[offset + 14]));
2104 uint32_t dstmask = *((uint32_t *)(&bios->data[offset + 18]));
2105 uint32_t srcvalue, dstvalue;
2106
2107 if (!iexec->execute)
37383650 2108 return 22;
6ee73861
BS		 2109
2110 BIOSLOG(bios, "0x%04X: SrcReg: 0x%08X, Shift: 0x%02X, SrcMask: 0x%08X, "
2111 "Xor: 0x%08X, DstReg: 0x%08X, DstMask: 0x%08X\n",
2112 offset, srcreg, shift, srcmask, xor, dstreg, dstmask);
2113
2114 srcvalue = bios_rd32(bios, srcreg);
2115
2116 if (shift < 0x80)
2117 srcvalue >>= shift;
2118 else
2119 srcvalue <<= (0x100 - shift);
2120
2121 srcvalue = (srcvalue & srcmask) ^ xor;
2122
2123 dstvalue = bios_rd32(bios, dstreg) & dstmask;
2124
2125 bios_wr32(bios, dstreg, dstvalue | srcvalue);
2126
37383650 2127 return 22;
6ee73861
BS		 2128}
2129
37383650 2130static int
6ee73861
BS		 2131init_zm_index_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2132{
2133 /*
2134 * INIT_ZM_INDEX_IO opcode: 0x62 ('b')
2135 *
2136 * offset (8 bit): opcode
2137 * offset + 1 (16 bit): CRTC port
2138 * offset + 3 (8 bit): CRTC index
2139 * offset + 4 (8 bit): data
2140 *
2141 * Write "data" to index "CRTC index" of "CRTC port"
2142 */
2143 uint16_t crtcport = ROM16(bios->data[offset + 1]);
2144 uint8_t crtcindex = bios->data[offset + 3];
2145 uint8_t data = bios->data[offset + 4];
2146
2147 if (!iexec->execute)
37383650 2148 return 5;
6ee73861
BS		 2149
2150 bios_idxprt_wr(bios, crtcport, crtcindex, data);
2151
37383650 2152 return 5;
6ee73861
BS		 2153}
2154
67eda20e
FJ		 2155static inline void
2156bios_md32(struct nvbios *bios, uint32_t reg,
2157 uint32_t mask, uint32_t val)
2158{
2159 bios_wr32(bios, reg, (bios_rd32(bios, reg) & ~mask) | val);
2160}
2161
2162static uint32_t
2163peek_fb(struct drm_device *dev, struct io_mapping *fb,
2164 uint32_t off)
2165{
2166 uint32_t val = 0;
2167
2168 if (off < pci_resource_len(dev->pdev, 1)) {
625db6b7 2169 uint8_t __iomem *p =
0bf9b0e0 2170 io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
67eda20e 2171
0bf9b0e0 2172 val = ioread32(p + (off & ~PAGE_MASK));
67eda20e 2173
fca3ec01 2174 io_mapping_unmap_atomic(p, KM_USER0);
67eda20e
FJ		 2175 }
2176
2177 return val;
2178}
2179
2180static void
2181poke_fb(struct drm_device *dev, struct io_mapping *fb,
2182 uint32_t off, uint32_t val)
2183{
2184 if (off < pci_resource_len(dev->pdev, 1)) {
625db6b7 2185 uint8_t __iomem *p =
0bf9b0e0 2186 io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
67eda20e 2187
0bf9b0e0 2188 iowrite32(val, p + (off & ~PAGE_MASK));
67eda20e
FJ		 2189 wmb();
2190
fca3ec01 2191 io_mapping_unmap_atomic(p, KM_USER0);
67eda20e
FJ		 2192 }
2193}
2194
2195static inline bool
2196read_back_fb(struct drm_device *dev, struct io_mapping *fb,
2197 uint32_t off, uint32_t val)
2198{
2199 poke_fb(dev, fb, off, val);
2200 return val == peek_fb(dev, fb, off);
2201}
2202
2203static int
2204nv04_init_compute_mem(struct nvbios *bios)
2205{
2206 struct drm_device *dev = bios->dev;
2207 uint32_t patt = 0xdeadbeef;
2208 struct io_mapping *fb;
2209 int i;
2210
2211 /* Map the framebuffer aperture */
2212 fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
2213 pci_resource_len(dev->pdev, 1));
2214 if (!fb)
2215 return -ENOMEM;
2216
2217 /* Sequencer and refresh off */
2218 NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) | 0x20);
2219 bios_md32(bios, NV04_PFB_DEBUG_0, 0, NV04_PFB_DEBUG_0_REFRESH_OFF);
2220
2221 bios_md32(bios, NV04_PFB_BOOT_0, ~0,
2222 NV04_PFB_BOOT_0_RAM_AMOUNT_16MB |
2223 NV04_PFB_BOOT_0_RAM_WIDTH_128 |
2224 NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_16MBIT);
2225
2226 for (i = 0; i < 4; i++)
2227 poke_fb(dev, fb, 4 * i, patt);
2228
2229 poke_fb(dev, fb, 0x400000, patt + 1);
2230
2231 if (peek_fb(dev, fb, 0) == patt + 1) {
2232 bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_TYPE,
2233 NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_16MBIT);
2234 bios_md32(bios, NV04_PFB_DEBUG_0,
2235 NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
2236
2237 for (i = 0; i < 4; i++)
2238 poke_fb(dev, fb, 4 * i, patt);
2239
2240 if ((peek_fb(dev, fb, 0xc) & 0xffff) != (patt & 0xffff))
2241 bios_md32(bios, NV04_PFB_BOOT_0,
2242 NV04_PFB_BOOT_0_RAM_WIDTH_128 |
2243 NV04_PFB_BOOT_0_RAM_AMOUNT,
2244 NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
2245
2246 } else if ((peek_fb(dev, fb, 0xc) & 0xffff0000) !=
2247 (patt & 0xffff0000)) {
2248 bios_md32(bios, NV04_PFB_BOOT_0,
2249 NV04_PFB_BOOT_0_RAM_WIDTH_128 |
2250 NV04_PFB_BOOT_0_RAM_AMOUNT,
2251 NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
2252
0746b5da 2253 } else if (peek_fb(dev, fb, 0) != patt) {
67eda20e
FJ		 2254 if (read_back_fb(dev, fb, 0x800000, patt))
2255 bios_md32(bios, NV04_PFB_BOOT_0,
2256 NV04_PFB_BOOT_0_RAM_AMOUNT,
2257 NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
2258 else
2259 bios_md32(bios, NV04_PFB_BOOT_0,
2260 NV04_PFB_BOOT_0_RAM_AMOUNT,
2261 NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
2262
2263 bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_TYPE,
2264 NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_8MBIT);
2265
2266 } else if (!read_back_fb(dev, fb, 0x800000, patt)) {
2267 bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
2268 NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
2269
2270 }
2271
2272 /* Refresh on, sequencer on */
2273 bios_md32(bios, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
2274 NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) & ~0x20);
2275
2276 io_mapping_free(fb);
2277 return 0;
2278}
2279
2280static const uint8_t *
2281nv05_memory_config(struct nvbios *bios)
2282{
2283 /* Defaults for BIOSes lacking a memory config table */
2284 static const uint8_t default_config_tab[][2] = {
2285 { 0x24, 0x00 },
2286 { 0x28, 0x00 },
2287 { 0x24, 0x01 },
2288 { 0x1f, 0x00 },
2289 { 0x0f, 0x00 },
2290 { 0x17, 0x00 },
2291 { 0x06, 0x00 },
2292 { 0x00, 0x00 }
2293 };
2294 int i = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) &
2295 NV_PEXTDEV_BOOT_0_RAMCFG) >> 2;
2296
2297 if (bios->legacy.mem_init_tbl_ptr)
2298 return &bios->data[bios->legacy.mem_init_tbl_ptr + 2 * i];
2299 else
2300 return default_config_tab[i];
2301}
2302
2303static int
2304nv05_init_compute_mem(struct nvbios *bios)
2305{
2306 struct drm_device *dev = bios->dev;
2307 const uint8_t *ramcfg = nv05_memory_config(bios);
2308 uint32_t patt = 0xdeadbeef;
2309 struct io_mapping *fb;
2310 int i, v;
2311
2312 /* Map the framebuffer aperture */
2313 fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
2314 pci_resource_len(dev->pdev, 1));
2315 if (!fb)
2316 return -ENOMEM;
2317
2318 /* Sequencer off */
2319 NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) | 0x20);
2320
2321 if (bios_rd32(bios, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_UMA_ENABLE)
2322 goto out;
2323
2324 bios_md32(bios, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
2325
2326 /* If present load the hardcoded scrambling table */
2327 if (bios->legacy.mem_init_tbl_ptr) {
2328 uint32_t *scramble_tab = (uint32_t *)&bios->data[
2329 bios->legacy.mem_init_tbl_ptr + 0x10];
2330
2331 for (i = 0; i < 8; i++)
2332 bios_wr32(bios, NV04_PFB_SCRAMBLE(i),
2333 ROM32(scramble_tab[i]));
2334 }
2335
2336 /* Set memory type/width/length defaults depending on the straps */
2337 bios_md32(bios, NV04_PFB_BOOT_0, 0x3f, ramcfg[0]);
2338
2339 if (ramcfg[1] & 0x80)
2340 bios_md32(bios, NV04_PFB_CFG0, 0, NV04_PFB_CFG0_SCRAMBLE);
2341
2342 bios_md32(bios, NV04_PFB_CFG1, 0x700001, (ramcfg[1] & 1) << 20);
2343 bios_md32(bios, NV04_PFB_CFG1, 0, 1);
2344
2345 /* Probe memory bus width */
2346 for (i = 0; i < 4; i++)
2347 poke_fb(dev, fb, 4 * i, patt);
2348
2349 if (peek_fb(dev, fb, 0xc) != patt)
2350 bios_md32(bios, NV04_PFB_BOOT_0,
2351 NV04_PFB_BOOT_0_RAM_WIDTH_128, 0);
2352
2353 /* Probe memory length */
2354 v = bios_rd32(bios, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_RAM_AMOUNT;
2355
2356 if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_32MB &&
2357 (!read_back_fb(dev, fb, 0x1000000, ++patt) ||
2358 !read_back_fb(dev, fb, 0, ++patt)))
2359 bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
2360 NV04_PFB_BOOT_0_RAM_AMOUNT_16MB);
2361
2362 if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_16MB &&
2363 !read_back_fb(dev, fb, 0x800000, ++patt))
2364 bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
2365 NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
2366
2367 if (!read_back_fb(dev, fb, 0x400000, ++patt))
2368 bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
2369 NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
2370
2371out:
2372 /* Sequencer on */
2373 NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) & ~0x20);
2374
2375 io_mapping_free(fb);
2376 return 0;
2377}
2378
2379static int
2380nv10_init_compute_mem(struct nvbios *bios)
2381{
2382 struct drm_device *dev = bios->dev;
2383 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
2384 const int mem_width[] = { 0x10, 0x00, 0x20 };
2385 const int mem_width_count = (dev_priv->chipset >= 0x17 ? 3 : 2);
2386 uint32_t patt = 0xdeadbeef;
2387 struct io_mapping *fb;
2388 int i, j, k;
2389
2390 /* Map the framebuffer aperture */
2391 fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
2392 pci_resource_len(dev->pdev, 1));
2393 if (!fb)
2394 return -ENOMEM;
2395
2396 bios_wr32(bios, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
2397
2398 /* Probe memory bus width */
2399 for (i = 0; i < mem_width_count; i++) {
2400 bios_md32(bios, NV04_PFB_CFG0, 0x30, mem_width[i]);
2401
2402 for (j = 0; j < 4; j++) {
2403 for (k = 0; k < 4; k++)
2404 poke_fb(dev, fb, 0x1c, 0);
2405
2406 poke_fb(dev, fb, 0x1c, patt);
2407 poke_fb(dev, fb, 0x3c, 0);
2408
2409 if (peek_fb(dev, fb, 0x1c) == patt)
2410 goto mem_width_found;
2411 }
2412 }
2413
2414mem_width_found:
2415 patt <<= 1;
2416
2417 /* Probe amount of installed memory */
2418 for (i = 0; i < 4; i++) {
2419 int off = bios_rd32(bios, NV04_PFB_FIFO_DATA) - 0x100000;
2420
2421 poke_fb(dev, fb, off, patt);
2422 poke_fb(dev, fb, 0, 0);
2423
2424 peek_fb(dev, fb, 0);
2425 peek_fb(dev, fb, 0);
2426 peek_fb(dev, fb, 0);
2427 peek_fb(dev, fb, 0);
2428
2429 if (peek_fb(dev, fb, off) == patt)
2430 goto amount_found;
2431 }
2432
2433 /* IC missing - disable the upper half memory space. */
2434 bios_md32(bios, NV04_PFB_CFG0, 0x1000, 0);
2435
2436amount_found:
2437 io_mapping_free(fb);
2438 return 0;
2439}
2440
2441static int
2442nv20_init_compute_mem(struct nvbios *bios)
2443{
2444 struct drm_device *dev = bios->dev;
2445 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
2446 uint32_t mask = (dev_priv->chipset >= 0x25 ? 0x300 : 0x900);
2447 uint32_t amount, off;
2448 struct io_mapping *fb;
2449
2450 /* Map the framebuffer aperture */
2451 fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
2452 pci_resource_len(dev->pdev, 1));
2453 if (!fb)
2454 return -ENOMEM;
2455
2456 bios_wr32(bios, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
2457
2458 /* Allow full addressing */
2459 bios_md32(bios, NV04_PFB_CFG0, 0, mask);
2460
2461 amount = bios_rd32(bios, NV04_PFB_FIFO_DATA);
2462 for (off = amount; off > 0x2000000; off -= 0x2000000)
2463 poke_fb(dev, fb, off - 4, off);
2464
2465 amount = bios_rd32(bios, NV04_PFB_FIFO_DATA);
2466 if (amount != peek_fb(dev, fb, amount - 4))
2467 /* IC missing - disable the upper half memory space. */
2468 bios_md32(bios, NV04_PFB_CFG0, mask, 0);
2469
2470 io_mapping_free(fb);
2471 return 0;
2472}
2473
37383650 2474static int
6ee73861
BS		 2475init_compute_mem(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2476{
2477 /*
2478 * INIT_COMPUTE_MEM opcode: 0x63 ('c')
2479 *
2480 * offset (8 bit): opcode
2481 *
67eda20e
FJ		 2482 * This opcode is meant to set the PFB memory config registers
2483 * appropriately so that we can correctly calculate how much VRAM it
2484 * has (on nv10 and better chipsets the amount of installed VRAM is
2485 * subsequently reported in NV_PFB_CSTATUS (0x10020C)).
6ee73861 2486 *
67eda20e
FJ		 2487 * The implementation of this opcode in general consists of several
2488 * parts:
6ee73861 2489 *
67eda20e
FJ		 2490 * 1) Determination of memory type and density. Only necessary for
2491 * really old chipsets, the memory type reported by the strap bits
2492 * (0x101000) is assumed to be accurate on nv05 and newer.
6ee73861 2493 *
67eda20e
FJ		 2494 * 2) Determination of the memory bus width. Usually done by a cunning
2495 * combination of writes to offsets 0x1c and 0x3c in the fb, and
2496 * seeing whether the written values are read back correctly.
6ee73861 2497 *
67eda20e
FJ		 2498 * Only necessary on nv0x-nv1x and nv34, on the other cards we can
2499 * trust the straps.
6ee73861 2500 *
67eda20e
FJ		 2501 * 3) Determination of how many of the card's RAM pads have ICs
2502 * attached, usually done by a cunning combination of writes to an
2503 * offset slightly less than the maximum memory reported by
2504 * NV_PFB_CSTATUS, then seeing if the test pattern can be read back.
6ee73861 2505 *
67eda20e
FJ		 2506 * This appears to be a NOP on IGPs and NV4x or newer chipsets, both io
2507 * logs of the VBIOS and kmmio traces of the binary driver POSTing the
2508 * card show nothing being done for this opcode. Why is it still listed
2509 * in the table?!
6ee73861
BS		 2510 */
2511
2512 /* no iexec->execute check by design */
2513
6ee73861 2514 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
67eda20e 2515 int ret;
6ee73861 2516
67eda20e
FJ		 2517 if (dev_priv->chipset >= 0x40 ||
2518 dev_priv->chipset == 0x1a ||
2519 dev_priv->chipset == 0x1f)
2520 ret = 0;
2521 else if (dev_priv->chipset >= 0x20 &&
2522 dev_priv->chipset != 0x34)
2523 ret = nv20_init_compute_mem(bios);
2524 else if (dev_priv->chipset >= 0x10)
2525 ret = nv10_init_compute_mem(bios);
2526 else if (dev_priv->chipset >= 0x5)
2527 ret = nv05_init_compute_mem(bios);
2528 else
2529 ret = nv04_init_compute_mem(bios);
6ee73861 2530
67eda20e
FJ		 2531 if (ret)
2532 return ret;
6ee73861 2533
37383650 2534 return 1;
6ee73861
BS		 2535}
2536
37383650 2537static int
6ee73861
BS		 2538init_reset(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2539{
2540 /*
2541 * INIT_RESET opcode: 0x65 ('e')
2542 *
2543 * offset (8 bit): opcode
2544 * offset + 1 (32 bit): register
2545 * offset + 5 (32 bit): value1
2546 * offset + 9 (32 bit): value2
2547 *
2548 * Assign "value1" to "register", then assign "value2" to "register"
2549 */
2550
2551 uint32_t reg = ROM32(bios->data[offset + 1]);
2552 uint32_t value1 = ROM32(bios->data[offset + 5]);
2553 uint32_t value2 = ROM32(bios->data[offset + 9]);
2554 uint32_t pci_nv_19, pci_nv_20;
2555
2556 /* no iexec->execute check by design */
2557
2558 pci_nv_19 = bios_rd32(bios, NV_PBUS_PCI_NV_19);
190a4378
FJ		 2559 bios_wr32(bios, NV_PBUS_PCI_NV_19, pci_nv_19 & ~0xf00);
2560
6ee73861
BS		 2561 bios_wr32(bios, reg, value1);
2562
2563 udelay(10);
2564
2565 bios_wr32(bios, reg, value2);
2566 bios_wr32(bios, NV_PBUS_PCI_NV_19, pci_nv_19);
2567
2568 pci_nv_20 = bios_rd32(bios, NV_PBUS_PCI_NV_20);
2569 pci_nv_20 &= ~NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED; /* 0xfffffffe */
2570 bios_wr32(bios, NV_PBUS_PCI_NV_20, pci_nv_20);
2571
37383650 2572 return 13;
6ee73861
BS		 2573}
2574
37383650 2575static int
6ee73861
BS		 2576init_configure_mem(struct nvbios *bios, uint16_t offset,
2577 struct init_exec *iexec)
2578{
2579 /*
2580 * INIT_CONFIGURE_MEM opcode: 0x66 ('f')
2581 *
2582 * offset (8 bit): opcode
2583 *
2584 * Equivalent to INIT_DONE on bios version 3 or greater.
2585 * For early bios versions, sets up the memory registers, using values
2586 * taken from the memory init table
2587 */
2588
2589 /* no iexec->execute check by design */
2590
2591 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);
2592 uint16_t seqtbloffs = bios->legacy.sdr_seq_tbl_ptr, meminitdata = meminitoffs + 6;
2593 uint32_t reg, data;
2594
2595 if (bios->major_version > 2)
ae55321c 2596 return 0;
6ee73861
BS		 2597
2598 bios_idxprt_wr(bios, NV_VIO_SRX, NV_VIO_SR_CLOCK_INDEX, bios_idxprt_rd(
2599 bios, NV_VIO_SRX, NV_VIO_SR_CLOCK_INDEX) | 0x20);
2600
2601 if (bios->data[meminitoffs] & 1)
2602 seqtbloffs = bios->legacy.ddr_seq_tbl_ptr;
2603
2604 for (reg = ROM32(bios->data[seqtbloffs]);
2605 reg != 0xffffffff;
2606 reg = ROM32(bios->data[seqtbloffs += 4])) {
2607
2608 switch (reg) {
3c7066bc
FJ		 2609 case NV04_PFB_PRE:
2610 data = NV04_PFB_PRE_CMD_PRECHARGE;
6ee73861 2611 break;
3c7066bc
FJ		 2612 case NV04_PFB_PAD:
2613 data = NV04_PFB_PAD_CKE_NORMAL;
6ee73861 2614 break;
3c7066bc
FJ		 2615 case NV04_PFB_REF:
2616 data = NV04_PFB_REF_CMD_REFRESH;
6ee73861
BS		 2617 break;
2618 default:
2619 data = ROM32(bios->data[meminitdata]);
2620 meminitdata += 4;
2621 if (data == 0xffffffff)
2622 continue;
2623 }
2624
2625 bios_wr32(bios, reg, data);
2626 }
2627
37383650 2628 return 1;
6ee73861
BS		 2629}
2630
37383650 2631static int
6ee73861
BS		 2632init_configure_clk(struct nvbios *bios, uint16_t offset,
2633 struct init_exec *iexec)
2634{
2635 /*
2636 * INIT_CONFIGURE_CLK opcode: 0x67 ('g')
2637 *
2638 * offset (8 bit): opcode
2639 *
2640 * Equivalent to INIT_DONE on bios version 3 or greater.
2641 * For early bios versions, sets up the NVClk and MClk PLLs, using
2642 * values taken from the memory init table
2643 */
2644
2645 /* no iexec->execute check by design */
2646
2647 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);
2648 int clock;
2649
2650 if (bios->major_version > 2)
ae55321c 2651 return 0;
6ee73861
BS		 2652
2653 clock = ROM16(bios->data[meminitoffs + 4]) * 10;
2654 setPLL(bios, NV_PRAMDAC_NVPLL_COEFF, clock);
2655
2656 clock = ROM16(bios->data[meminitoffs + 2]) * 10;
2657 if (bios->data[meminitoffs] & 1) /* DDR */
2658 clock *= 2;
2659 setPLL(bios, NV_PRAMDAC_MPLL_COEFF, clock);
2660
37383650 2661 return 1;
6ee73861
BS		 2662}
2663
37383650 2664static int
6ee73861
BS		 2665init_configure_preinit(struct nvbios *bios, uint16_t offset,
2666 struct init_exec *iexec)
2667{
2668 /*
2669 * INIT_CONFIGURE_PREINIT opcode: 0x68 ('h')
2670 *
2671 * offset (8 bit): opcode
2672 *
2673 * Equivalent to INIT_DONE on bios version 3 or greater.
2674 * For early bios versions, does early init, loading ram and crystal
2675 * configuration from straps into CR3C
2676 */
2677
2678 /* no iexec->execute check by design */
2679
2680 uint32_t straps = bios_rd32(bios, NV_PEXTDEV_BOOT_0);
3c9b2534 2681 uint8_t cr3c = ((straps << 2) & 0xf0) | (straps & 0x40) >> 6;
6ee73861
BS		 2682
2683 if (bios->major_version > 2)
ae55321c 2684 return 0;
6ee73861
BS		 2685
2686 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR,
2687 NV_CIO_CRE_SCRATCH4__INDEX, cr3c);
2688
37383650 2689 return 1;
6ee73861
BS		 2690}
2691
37383650 2692static int
6ee73861
BS		 2693init_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2694{
2695 /*
2696 * INIT_IO opcode: 0x69 ('i')
2697 *
2698 * offset (8 bit): opcode
2699 * offset + 1 (16 bit): CRTC port
2700 * offset + 3 (8 bit): mask
2701 * offset + 4 (8 bit): data
2702 *
2703 * Assign ((IOVAL("crtc port") & "mask") | "data") to "crtc port"
2704 */
2705
2706 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
2707 uint16_t crtcport = ROM16(bios->data[offset + 1]);
2708 uint8_t mask = bios->data[offset + 3];
2709 uint8_t data = bios->data[offset + 4];
2710
2711 if (!iexec->execute)
37383650 2712 return 5;
6ee73861
BS		 2713
2714 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Mask: 0x%02X, Data: 0x%02X\n",
2715 offset, crtcport, mask, data);
2716
2717 /*
2718 * I have no idea what this does, but NVIDIA do this magic sequence
2719 * in the places where this INIT_IO happens..
2720 */
2721 if (dev_priv->card_type >= NV_50 && crtcport == 0x3c3 && data == 1) {
2722 int i;
2723
2724 bios_wr32(bios, 0x614100, (bios_rd32(
2725 bios, 0x614100) & 0x0fffffff) | 0x00800000);
2726
2727 bios_wr32(bios, 0x00e18c, bios_rd32(
2728 bios, 0x00e18c) | 0x00020000);
2729
2730 bios_wr32(bios, 0x614900, (bios_rd32(
2731 bios, 0x614900) & 0x0fffffff) | 0x00800000);
2732
2733 bios_wr32(bios, 0x000200, bios_rd32(
2734 bios, 0x000200) & ~0x40000000);
2735
2736 mdelay(10);
2737
2738 bios_wr32(bios, 0x00e18c, bios_rd32(
2739 bios, 0x00e18c) & ~0x00020000);
2740
2741 bios_wr32(bios, 0x000200, bios_rd32(
2742 bios, 0x000200) | 0x40000000);
2743
2744 bios_wr32(bios, 0x614100, 0x00800018);
2745 bios_wr32(bios, 0x614900, 0x00800018);
2746
2747 mdelay(10);
2748
2749 bios_wr32(bios, 0x614100, 0x10000018);
2750 bios_wr32(bios, 0x614900, 0x10000018);
2751
2752 for (i = 0; i < 3; i++)
2753 bios_wr32(bios, 0x614280 + (i*0x800), bios_rd32(
2754 bios, 0x614280 + (i*0x800)) & 0xf0f0f0f0);
2755
2756 for (i = 0; i < 2; i++)
2757 bios_wr32(bios, 0x614300 + (i*0x800), bios_rd32(
2758 bios, 0x614300 + (i*0x800)) & 0xfffff0f0);
2759
2760 for (i = 0; i < 3; i++)
2761 bios_wr32(bios, 0x614380 + (i*0x800), bios_rd32(
2762 bios, 0x614380 + (i*0x800)) & 0xfffff0f0);
2763
2764 for (i = 0; i < 2; i++)
2765 bios_wr32(bios, 0x614200 + (i*0x800), bios_rd32(
2766 bios, 0x614200 + (i*0x800)) & 0xfffffff0);
2767
2768 for (i = 0; i < 2; i++)
2769 bios_wr32(bios, 0x614108 + (i*0x800), bios_rd32(
2770 bios, 0x614108 + (i*0x800)) & 0x0fffffff);
37383650 2771 return 5;
6ee73861
BS		 2772 }
2773
2774 bios_port_wr(bios, crtcport, (bios_port_rd(bios, crtcport) & mask) |
2775 data);
37383650 2776 return 5;
6ee73861
BS		 2777}
2778
37383650 2779static int
6ee73861
BS		 2780init_sub(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2781{
2782 /*
2783 * INIT_SUB opcode: 0x6B ('k')
2784 *
2785 * offset (8 bit): opcode
2786 * offset + 1 (8 bit): script number
2787 *
2788 * Execute script number "script number", as a subroutine
2789 */
2790
2791 uint8_t sub = bios->data[offset + 1];
2792
2793 if (!iexec->execute)
37383650 2794 return 2;
6ee73861
BS		 2795
2796 BIOSLOG(bios, "0x%04X: Calling script %d\n", offset, sub);
2797
2798 parse_init_table(bios,
2799 ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]),
2800 iexec);
2801
2802 BIOSLOG(bios, "0x%04X: End of script %d\n", offset, sub);
2803
37383650 2804 return 2;
6ee73861
BS		 2805}
2806
37383650 2807static int
6ee73861
BS		 2808init_ram_condition(struct nvbios *bios, uint16_t offset,
2809 struct init_exec *iexec)
2810{
2811 /*
2812 * INIT_RAM_CONDITION opcode: 0x6D ('m')
2813 *
2814 * offset (8 bit): opcode
2815 * offset + 1 (8 bit): mask
2816 * offset + 2 (8 bit): cmpval
2817 *
3c7066bc 2818 * Test if (NV04_PFB_BOOT_0 & "mask") equals "cmpval".
6ee73861
BS		 2819 * If condition not met skip subsequent opcodes until condition is
2820 * inverted (INIT_NOT), or we hit INIT_RESUME
2821 */
2822
2823 uint8_t mask = bios->data[offset + 1];
2824 uint8_t cmpval = bios->data[offset + 2];
2825 uint8_t data;
2826
2827 if (!iexec->execute)
37383650 2828 return 3;
6ee73861 2829
3c7066bc 2830 data = bios_rd32(bios, NV04_PFB_BOOT_0) & mask;
6ee73861
BS		 2831
2832 BIOSLOG(bios, "0x%04X: Checking if 0x%08X equals 0x%08X\n",
2833 offset, data, cmpval);
2834
2835 if (data == cmpval)
2836 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
2837 else {
2838 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
2839 iexec->execute = false;
2840 }
2841
37383650 2842 return 3;
6ee73861
BS		 2843}
2844
37383650 2845static int
6ee73861
BS		 2846init_nv_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2847{
2848 /*
2849 * INIT_NV_REG opcode: 0x6E ('n')
2850 *
2851 * offset (8 bit): opcode
2852 * offset + 1 (32 bit): register
2853 * offset + 5 (32 bit): mask
2854 * offset + 9 (32 bit): data
2855 *
2856 * Assign ((REGVAL("register") & "mask") | "data") to "register"
2857 */
2858
2859 uint32_t reg = ROM32(bios->data[offset + 1]);
2860 uint32_t mask = ROM32(bios->data[offset + 5]);
2861 uint32_t data = ROM32(bios->data[offset + 9]);
2862
2863 if (!iexec->execute)
37383650 2864 return 13;
6ee73861
BS		 2865
2866 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Mask: 0x%08X, Data: 0x%08X\n",
2867 offset, reg, mask, data);
2868
2869 bios_wr32(bios, reg, (bios_rd32(bios, reg) & mask) | data);
2870
37383650 2871 return 13;
6ee73861
BS		 2872}
2873
37383650 2874static int
6ee73861
BS		 2875init_macro(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2876{
2877 /*
2878 * INIT_MACRO opcode: 0x6F ('o')
2879 *
2880 * offset (8 bit): opcode
2881 * offset + 1 (8 bit): macro number
2882 *
2883 * Look up macro index "macro number" in the macro index table.
2884 * The macro index table entry has 1 byte for the index in the macro
2885 * table, and 1 byte for the number of times to repeat the macro.
2886 * The macro table entry has 4 bytes for the register address and
2887 * 4 bytes for the value to write to that register
2888 */
2889
2890 uint8_t macro_index_tbl_idx = bios->data[offset + 1];
2891 uint16_t tmp = bios->macro_index_tbl_ptr + (macro_index_tbl_idx * MACRO_INDEX_SIZE);
2892 uint8_t macro_tbl_idx = bios->data[tmp];
2893 uint8_t count = bios->data[tmp + 1];
2894 uint32_t reg, data;
2895 int i;
2896
2897 if (!iexec->execute)
37383650 2898 return 2;
6ee73861
BS		 2899
2900 BIOSLOG(bios, "0x%04X: Macro: 0x%02X, MacroTableIndex: 0x%02X, "
2901 "Count: 0x%02X\n",
2902 offset, macro_index_tbl_idx, macro_tbl_idx, count);
2903
2904 for (i = 0; i < count; i++) {
2905 uint16_t macroentryptr = bios->macro_tbl_ptr + (macro_tbl_idx + i) * MACRO_SIZE;
2906
2907 reg = ROM32(bios->data[macroentryptr]);
2908 data = ROM32(bios->data[macroentryptr + 4]);
2909
2910 bios_wr32(bios, reg, data);
2911 }
2912
37383650 2913 return 2;
6ee73861
BS		 2914}
2915
37383650 2916static int
6ee73861
BS		 2917init_done(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2918{
2919 /*
2920 * INIT_DONE opcode: 0x71 ('q')
2921 *
2922 * offset (8 bit): opcode
2923 *
2924 * End the current script
2925 */
2926
2927 /* mild retval abuse to stop parsing this table */
37383650 2928 return 0;
6ee73861
BS		 2929}
2930
37383650 2931static int
6ee73861
BS		 2932init_resume(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2933{
2934 /*
2935 * INIT_RESUME opcode: 0x72 ('r')
2936 *
2937 * offset (8 bit): opcode
2938 *
2939 * End the current execute / no-execute condition
2940 */
2941
2942 if (iexec->execute)
37383650 2943 return 1;
6ee73861
BS		 2944
2945 iexec->execute = true;
2946 BIOSLOG(bios, "0x%04X: ---- Executing following commands ----\n", offset);
2947
37383650 2948 return 1;
6ee73861
BS		 2949}
2950
37383650 2951static int
6ee73861
BS		 2952init_time(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2953{
2954 /*
2955 * INIT_TIME opcode: 0x74 ('t')
2956 *
2957 * offset (8 bit): opcode
2958 * offset + 1 (16 bit): time
2959 *
2960 * Sleep for "time" microseconds.
2961 */
2962
2963 unsigned time = ROM16(bios->data[offset + 1]);
2964
2965 if (!iexec->execute)
37383650 2966 return 3;
6ee73861
BS		 2967
2968 BIOSLOG(bios, "0x%04X: Sleeping for 0x%04X microseconds\n",
2969 offset, time);
2970
2971 if (time < 1000)
2972 udelay(time);
2973 else
2974 msleep((time + 900) / 1000);
2975
37383650 2976 return 3;
6ee73861
BS		 2977}
2978
37383650 2979static int
6ee73861
BS		 2980init_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2981{
2982 /*
2983 * INIT_CONDITION opcode: 0x75 ('u')
2984 *
2985 * offset (8 bit): opcode
2986 * offset + 1 (8 bit): condition number
2987 *
2988 * Check condition "condition number" in the condition table.
2989 * If condition not met skip subsequent opcodes until condition is
2990 * inverted (INIT_NOT), or we hit INIT_RESUME
2991 */
2992
2993 uint8_t cond = bios->data[offset + 1];
2994
2995 if (!iexec->execute)
37383650 2996 return 2;
6ee73861
BS		 2997
2998 BIOSLOG(bios, "0x%04X: Condition: 0x%02X\n", offset, cond);
2999
3000 if (bios_condition_met(bios, offset, cond))
3001 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
3002 else {
3003 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
3004 iexec->execute = false;
3005 }
3006
37383650 3007 return 2;
6ee73861
BS		 3008}
3009
37383650 3010static int
6ee73861
BS		 3011init_io_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3012{
3013 /*
3014 * INIT_IO_CONDITION opcode: 0x76
3015 *
3016 * offset (8 bit): opcode
3017 * offset + 1 (8 bit): condition number
3018 *
3019 * Check condition "condition number" in the io condition table.
3020 * If condition not met skip subsequent opcodes until condition is
3021 * inverted (INIT_NOT), or we hit INIT_RESUME
3022 */
3023
3024 uint8_t cond = bios->data[offset + 1];
3025
3026 if (!iexec->execute)
37383650 3027 return 2;
6ee73861
BS		 3028
3029 BIOSLOG(bios, "0x%04X: IO condition: 0x%02X\n", offset, cond);
3030
3031 if (io_condition_met(bios, offset, cond))
3032 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
3033 else {
3034 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
3035 iexec->execute = false;
3036 }
3037
37383650 3038 return 2;
6ee73861
BS		 3039}
3040
37383650 3041static int
6ee73861
BS		 3042init_index_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3043{
3044 /*
3045 * INIT_INDEX_IO opcode: 0x78 ('x')
3046 *
3047 * offset (8 bit): opcode
3048 * offset + 1 (16 bit): CRTC port
3049 * offset + 3 (8 bit): CRTC index
3050 * offset + 4 (8 bit): mask
3051 * offset + 5 (8 bit): data
3052 *
3053 * Read value at index "CRTC index" on "CRTC port", AND with "mask",
3054 * OR with "data", write-back
3055 */
3056
3057 uint16_t crtcport = ROM16(bios->data[offset + 1]);
3058 uint8_t crtcindex = bios->data[offset + 3];
3059 uint8_t mask = bios->data[offset + 4];
3060 uint8_t data = bios->data[offset + 5];
3061 uint8_t value;
3062
3063 if (!iexec->execute)
37383650 3064 return 6;
6ee73861
BS		 3065
3066 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
3067 "Data: 0x%02X\n",
3068 offset, crtcport, crtcindex, mask, data);
3069
3070 value = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) | data;
3071 bios_idxprt_wr(bios, crtcport, crtcindex, value);
3072
37383650 3073 return 6;
6ee73861
BS		 3074}
3075
37383650 3076static int
6ee73861
BS		 3077init_pll(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3078{
3079 /*
3080 * INIT_PLL opcode: 0x79 ('y')
3081 *
3082 * offset (8 bit): opcode
3083 * offset + 1 (32 bit): register
3084 * offset + 5 (16 bit): freq
3085 *
3086 * Set PLL register "register" to coefficients for frequency (10kHz)
3087 * "freq"
3088 */
3089
3090 uint32_t reg = ROM32(bios->data[offset + 1]);
3091 uint16_t freq = ROM16(bios->data[offset + 5]);
3092
3093 if (!iexec->execute)
37383650 3094 return 7;
6ee73861
BS		 3095
3096 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Freq: %d0kHz\n", offset, reg, freq);
3097
3098 setPLL(bios, reg, freq * 10);
3099
37383650 3100 return 7;
6ee73861
BS		 3101}
3102
37383650 3103static int
6ee73861
BS		 3104init_zm_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3105{
3106 /*
3107 * INIT_ZM_REG opcode: 0x7A ('z')
3108 *
3109 * offset (8 bit): opcode
3110 * offset + 1 (32 bit): register
3111 * offset + 5 (32 bit): value
3112 *
3113 * Assign "value" to "register"
3114 */
3115
3116 uint32_t reg = ROM32(bios->data[offset + 1]);
3117 uint32_t value = ROM32(bios->data[offset + 5]);
3118
3119 if (!iexec->execute)
37383650 3120 return 9;
6ee73861
BS		 3121
3122 if (reg == 0x000200)
3123 value |= 1;
3124
3125 bios_wr32(bios, reg, value);
3126
37383650 3127 return 9;
6ee73861
BS		 3128}
3129
37383650 3130static int
6ee73861
BS		 3131init_ram_restrict_pll(struct nvbios *bios, uint16_t offset,
3132 struct init_exec *iexec)
3133{
3134 /*
3135 * INIT_RAM_RESTRICT_PLL opcode: 0x87 ('')
3136 *
3137 * offset (8 bit): opcode
3138 * offset + 1 (8 bit): PLL type
3139 * offset + 2 (32 bit): frequency 0
3140 *
3141 * Uses the RAMCFG strap of PEXTDEV_BOOT as an index into the table at
3142 * ram_restrict_table_ptr. The value read from there is used to select
3143 * a frequency from the table starting at 'frequency 0' to be
3144 * programmed into the PLL corresponding to 'type'.
3145 *
3146 * The PLL limits table on cards using this opcode has a mapping of
3147 * 'type' to the relevant registers.
3148 */
3149
3150 struct drm_device *dev = bios->dev;
3151 uint32_t strap = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) & 0x0000003c) >> 2;
3152 uint8_t index = bios->data[bios->ram_restrict_tbl_ptr + strap];
3153 uint8_t type = bios->data[offset + 1];
3154 uint32_t freq = ROM32(bios->data[offset + 2 + (index * 4)]);
3155 uint8_t *pll_limits = &bios->data[bios->pll_limit_tbl_ptr], *entry;
37383650 3156 int len = 2 + bios->ram_restrict_group_count * 4;
6ee73861
BS		 3157 int i;
3158
3159 if (!iexec->execute)
37383650 3160 return len;
6ee73861
BS		 3161
3162 if (!bios->pll_limit_tbl_ptr || (pll_limits[0] & 0xf0) != 0x30) {
3163 NV_ERROR(dev, "PLL limits table not version 3.x\n");
37383650 3164 return len; /* deliberate, allow default clocks to remain */
6ee73861
BS		 3165 }
3166
3167 entry = pll_limits + pll_limits[1];
3168 for (i = 0; i < pll_limits[3]; i++, entry += pll_limits[2]) {
3169 if (entry[0] == type) {
3170 uint32_t reg = ROM32(entry[3]);
3171
3172 BIOSLOG(bios, "0x%04X: "
3173 "Type %02x Reg 0x%08x Freq %dKHz\n",
3174 offset, type, reg, freq);
3175
3176 setPLL(bios, reg, freq);
37383650 3177 return len;
6ee73861
BS		 3178 }
3179 }
3180
3181 NV_ERROR(dev, "PLL type 0x%02x not found in PLL limits table", type);
37383650 3182 return len;
6ee73861
BS		 3183}
3184
37383650 3185static int
6ee73861
BS		 3186init_8c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3187{
3188 /*
3189 * INIT_8C opcode: 0x8C ('')
3190 *
3191 * NOP so far....
3192 *
3193 */
3194
37383650 3195 return 1;
6ee73861
BS		 3196}
3197
37383650 3198static int
6ee73861
BS		 3199init_8d(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3200{
3201 /*
3202 * INIT_8D opcode: 0x8D ('')
3203 *
3204 * NOP so far....
3205 *
3206 */
3207
37383650 3208 return 1;
6ee73861
BS		 3209}
3210
37383650 3211static int
6ee73861
BS		 3212init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3213{
3214 /*
3215 * INIT_GPIO opcode: 0x8E ('')
3216 *
3217 * offset (8 bit): opcode
3218 *
3219 * Loop over all entries in the DCB GPIO table, and initialise
3220 * each GPIO according to various values listed in each entry
3221 */
3222
2535d71c 3223 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
ee2e0131 3224 struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
6ee73861 3225 const uint32_t nv50_gpio_ctl[2] = { 0xe100, 0xe28c };
6ee73861
BS		 3226 int i;
3227
080feda5 3228 if (dev_priv->card_type < NV_50) {
2535d71c 3229 NV_ERROR(bios->dev, "INIT_GPIO on unsupported chipset\n");
309b8c89 3230 return 1;
6ee73861
BS		 3231 }
3232
2535d71c
BS		 3233 if (!iexec->execute)
3234 return 1;
6ee73861 3235
2535d71c
BS		 3236 for (i = 0; i < bios->dcb.gpio.entries; i++) {
3237 struct dcb_gpio_entry *gpio = &bios->dcb.gpio.entry[i];
3238 uint32_t r, s, v;
6ee73861 3239
2535d71c 3240 BIOSLOG(bios, "0x%04X: Entry: 0x%08X\n", offset, gpio->entry);
6ee73861 3241
73db4bed
BS		 3242 BIOSLOG(bios, "0x%04X: set gpio 0x%02x, state %d\n",
3243 offset, gpio->tag, gpio->state_default);
3244 if (bios->execute)
ee2e0131 3245 pgpio->set(bios->dev, gpio->tag, gpio->state_default);
6ee73861 3246
45284162
BS		 3247 /* The NVIDIA binary driver doesn't appear to actually do
3248 * any of this, my VBIOS does however.
3249 */
3250 /* Not a clue, needs de-magicing */
2535d71c
BS		 3251 r = nv50_gpio_ctl[gpio->line >> 4];
3252 s = (gpio->line & 0x0f);
6ee73861 3253 v = bios_rd32(bios, r) & ~(0x00010001 << s);
2535d71c 3254 switch ((gpio->entry & 0x06000000) >> 25) {
6ee73861
BS		 3255 case 1:
3256 v |= (0x00000001 << s);
3257 break;
3258 case 2:
3259 v |= (0x00010000 << s);
3260 break;
3261 default:
3262 break;
3263 }
3264 bios_wr32(bios, r, v);
3265 }
3266
37383650 3267 return 1;
6ee73861
BS		 3268}
3269
37383650 3270static int
6ee73861
BS		 3271init_ram_restrict_zm_reg_group(struct nvbios *bios, uint16_t offset,
3272 struct init_exec *iexec)
3273{
3274 /*
3275 * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode: 0x8F ('')
3276 *
3277 * offset (8 bit): opcode
3278 * offset + 1 (32 bit): reg
3279 * offset + 5 (8 bit): regincrement
3280 * offset + 6 (8 bit): count
3281 * offset + 7 (32 bit): value 1,1
3282 * ...
3283 *
3284 * Use the RAMCFG strap of PEXTDEV_BOOT as an index into the table at
3285 * ram_restrict_table_ptr. The value read from here is 'n', and
3286 * "value 1,n" gets written to "reg". This repeats "count" times and on
3287 * each iteration 'm', "reg" increases by "regincrement" and
3288 * "value m,n" is used. The extent of n is limited by a number read
3289 * from the 'M' BIT table, herein called "blocklen"
3290 */
3291
3292 uint32_t reg = ROM32(bios->data[offset + 1]);
3293 uint8_t regincrement = bios->data[offset + 5];
3294 uint8_t count = bios->data[offset + 6];
3295 uint32_t strap_ramcfg, data;
37383650
MK		 3296 /* previously set by 'M' BIT table */
3297 uint16_t blocklen = bios->ram_restrict_group_count * 4;
3298 int len = 7 + count * blocklen;
6ee73861
BS		 3299 uint8_t index;
3300 int i;
3301
309b8c89 3302 /* critical! to know the length of the opcode */;
6ee73861
BS		 3303 if (!blocklen) {
3304 NV_ERROR(bios->dev,
3305 "0x%04X: Zero block length - has the M table "
3306 "been parsed?\n", offset);
9170a824 3307 return -EINVAL;
6ee73861
BS		 3308 }
3309
309b8c89
BS		 3310 if (!iexec->execute)
3311 return len;
3312
6ee73861
BS		 3313 strap_ramcfg = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 2) & 0xf;
3314 index = bios->data[bios->ram_restrict_tbl_ptr + strap_ramcfg];
3315
3316 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, RegIncrement: 0x%02X, "
3317 "Count: 0x%02X, StrapRamCfg: 0x%02X, Index: 0x%02X\n",
3318 offset, reg, regincrement, count, strap_ramcfg, index);
3319
3320 for (i = 0; i < count; i++) {
3321 data = ROM32(bios->data[offset + 7 + index * 4 + blocklen * i]);
3322
3323 bios_wr32(bios, reg, data);
3324
3325 reg += regincrement;
3326 }
3327
37383650 3328 return len;
6ee73861
BS		 3329}
3330
37383650 3331static int
6ee73861
BS		 3332init_copy_zm_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3333{
3334 /*
3335 * INIT_COPY_ZM_REG opcode: 0x90 ('')
3336 *
3337 * offset (8 bit): opcode
3338 * offset + 1 (32 bit): src reg
3339 * offset + 5 (32 bit): dst reg
3340 *
3341 * Put contents of "src reg" into "dst reg"
3342 */
3343
3344 uint32_t srcreg = ROM32(bios->data[offset + 1]);
3345 uint32_t dstreg = ROM32(bios->data[offset + 5]);
3346
3347 if (!iexec->execute)
37383650 3348 return 9;
6ee73861
BS		 3349
3350 bios_wr32(bios, dstreg, bios_rd32(bios, srcreg));
3351
37383650 3352 return 9;
6ee73861
BS		 3353}
3354
37383650 3355static int
6ee73861
BS		 3356init_zm_reg_group_addr_latched(struct nvbios *bios, uint16_t offset,
3357 struct init_exec *iexec)
3358{
3359 /*
3360 * INIT_ZM_REG_GROUP_ADDRESS_LATCHED opcode: 0x91 ('')
3361 *
3362 * offset (8 bit): opcode
3363 * offset + 1 (32 bit): dst reg
3364 * offset + 5 (8 bit): count
3365 * offset + 6 (32 bit): data 1
3366 * ...
3367 *
3368 * For each of "count" values write "data n" to "dst reg"
3369 */
3370
3371 uint32_t reg = ROM32(bios->data[offset + 1]);
3372 uint8_t count = bios->data[offset + 5];
37383650 3373 int len = 6 + count * 4;
6ee73861
BS		 3374 int i;
3375
3376 if (!iexec->execute)
37383650 3377 return len;
6ee73861
BS		 3378
3379 for (i = 0; i < count; i++) {
3380 uint32_t data = ROM32(bios->data[offset + 6 + 4 * i]);
3381 bios_wr32(bios, reg, data);
3382 }
3383
37383650 3384 return len;
6ee73861
BS		 3385}
3386
37383650 3387static int
6ee73861
BS		 3388init_reserved(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3389{
3390 /*
3391 * INIT_RESERVED opcode: 0x92 ('')
3392 *
3393 * offset (8 bit): opcode
3394 *
3395 * Seemingly does nothing
3396 */
3397
37383650 3398 return 1;
6ee73861
BS		 3399}
3400
37383650 3401static int
6ee73861
BS		 3402init_96(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3403{
3404 /*
3405 * INIT_96 opcode: 0x96 ('')
3406 *
3407 * offset (8 bit): opcode
3408 * offset + 1 (32 bit): sreg
3409 * offset + 5 (8 bit): sshift
3410 * offset + 6 (8 bit): smask
3411 * offset + 7 (8 bit): index
3412 * offset + 8 (32 bit): reg
3413 * offset + 12 (32 bit): mask
3414 * offset + 16 (8 bit): shift
3415 *
3416 */
3417
3418 uint16_t xlatptr = bios->init96_tbl_ptr + (bios->data[offset + 7] * 2);
3419 uint32_t reg = ROM32(bios->data[offset + 8]);
3420 uint32_t mask = ROM32(bios->data[offset + 12]);
3421 uint32_t val;
3422
3423 val = bios_rd32(bios, ROM32(bios->data[offset + 1]));
3424 if (bios->data[offset + 5] < 0x80)
3425 val >>= bios->data[offset + 5];
3426 else
3427 val <<= (0x100 - bios->data[offset + 5]);
3428 val &= bios->data[offset + 6];
3429
3430 val = bios->data[ROM16(bios->data[xlatptr]) + val];
3431 val <<= bios->data[offset + 16];
3432
3433 if (!iexec->execute)
37383650 3434 return 17;
6ee73861
BS		 3435
3436 bios_wr32(bios, reg, (bios_rd32(bios, reg) & mask) | val);
37383650 3437 return 17;
6ee73861
BS		 3438}
3439
37383650 3440static int
6ee73861
BS		 3441init_97(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3442{
3443 /*
3444 * INIT_97 opcode: 0x97 ('')
3445 *
3446 * offset (8 bit): opcode
3447 * offset + 1 (32 bit): register
3448 * offset + 5 (32 bit): mask
3449 * offset + 9 (32 bit): value
3450 *
3451 * Adds "value" to "register" preserving the fields specified
3452 * by "mask"
3453 */
3454
3455 uint32_t reg = ROM32(bios->data[offset + 1]);
3456 uint32_t mask = ROM32(bios->data[offset + 5]);
3457 uint32_t add = ROM32(bios->data[offset + 9]);
3458 uint32_t val;
3459
3460 val = bios_rd32(bios, reg);
3461 val = (val & mask) | ((val + add) & ~mask);
3462
3463 if (!iexec->execute)
37383650 3464 return 13;
6ee73861
BS		 3465
3466 bios_wr32(bios, reg, val);
37383650 3467 return 13;
6ee73861
BS		 3468}
3469
37383650 3470static int
6ee73861
BS		 3471init_auxch(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3472{
3473 /*
3474 * INIT_AUXCH opcode: 0x98 ('')
3475 *
3476 * offset (8 bit): opcode
3477 * offset + 1 (32 bit): address
3478 * offset + 5 (8 bit): count
3479 * offset + 6 (8 bit): mask 0
3480 * offset + 7 (8 bit): data 0
3481 * ...
3482 *
3483 */
3484
3485 struct drm_device *dev = bios->dev;
3486 struct nouveau_i2c_chan *auxch;
3487 uint32_t addr = ROM32(bios->data[offset + 1]);
37383650
MK		 3488 uint8_t count = bios->data[offset + 5];
3489 int len = 6 + count * 2;
6ee73861
BS		 3490 int ret, i;
3491
3492 if (!bios->display.output) {
3493 NV_ERROR(dev, "INIT_AUXCH: no active output\n");
309b8c89 3494 return len;
6ee73861
BS		 3495 }
3496
3497 auxch = init_i2c_device_find(dev, bios->display.output->i2c_index);
3498 if (!auxch) {
3499 NV_ERROR(dev, "INIT_AUXCH: couldn't get auxch %d\n",
3500 bios->display.output->i2c_index);
309b8c89 3501 return len;
6ee73861
BS		 3502 }
3503
3504 if (!iexec->execute)
37383650 3505 return len;
6ee73861
BS		 3506
3507 offset += 6;
37383650 3508 for (i = 0; i < count; i++, offset += 2) {
6ee73861
BS		 3509 uint8_t data;
3510
3511 ret = nouveau_dp_auxch(auxch, 9, addr, &data, 1);
3512 if (ret) {
3513 NV_ERROR(dev, "INIT_AUXCH: rd auxch fail %d\n", ret);
309b8c89 3514 return len;
6ee73861
BS		 3515 }
3516
3517 data &= bios->data[offset + 0];
3518 data |= bios->data[offset + 1];
3519
3520 ret = nouveau_dp_auxch(auxch, 8, addr, &data, 1);
3521 if (ret) {
3522 NV_ERROR(dev, "INIT_AUXCH: wr auxch fail %d\n", ret);
309b8c89 3523 return len;
6ee73861
BS		 3524 }
3525 }
3526
37383650 3527 return len;
6ee73861
BS		 3528}
3529
37383650 3530static int
6ee73861
BS		 3531init_zm_auxch(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3532{
3533 /*
3534 * INIT_ZM_AUXCH opcode: 0x99 ('')
3535 *
3536 * offset (8 bit): opcode
3537 * offset + 1 (32 bit): address
3538 * offset + 5 (8 bit): count
3539 * offset + 6 (8 bit): data 0
3540 * ...
3541 *
3542 */
3543
3544 struct drm_device *dev = bios->dev;
3545 struct nouveau_i2c_chan *auxch;
3546 uint32_t addr = ROM32(bios->data[offset + 1]);
37383650
MK		 3547 uint8_t count = bios->data[offset + 5];
3548 int len = 6 + count;
6ee73861
BS		 3549 int ret, i;
3550
3551 if (!bios->display.output) {
3552 NV_ERROR(dev, "INIT_ZM_AUXCH: no active output\n");
309b8c89 3553 return len;
6ee73861
BS		 3554 }
3555
3556 auxch = init_i2c_device_find(dev, bios->display.output->i2c_index);
3557 if (!auxch) {
3558 NV_ERROR(dev, "INIT_ZM_AUXCH: couldn't get auxch %d\n",
3559 bios->display.output->i2c_index);
309b8c89 3560 return len;
6ee73861
BS		 3561 }
3562
3563 if (!iexec->execute)
37383650 3564 return len;
6ee73861
BS		 3565
3566 offset += 6;
37383650 3567 for (i = 0; i < count; i++, offset++) {
6ee73861
BS		 3568 ret = nouveau_dp_auxch(auxch, 8, addr, &bios->data[offset], 1);
3569 if (ret) {
3570 NV_ERROR(dev, "INIT_ZM_AUXCH: wr auxch fail %d\n", ret);
309b8c89 3571 return len;
6ee73861
BS		 3572 }
3573 }
3574
37383650 3575 return len;
6ee73861
BS		 3576}
3577
b715d640
MK		 3578static int
3579init_i2c_long_if(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3580{
3581 /*
3582 * INIT_I2C_LONG_IF opcode: 0x9A ('')
3583 *
3584 * offset (8 bit): opcode
3585 * offset + 1 (8 bit): DCB I2C table entry index
3586 * offset + 2 (8 bit): I2C slave address
3587 * offset + 3 (16 bit): I2C register
3588 * offset + 5 (8 bit): mask
3589 * offset + 6 (8 bit): data
3590 *
3591 * Read the register given by "I2C register" on the device addressed
3592 * by "I2C slave address" on the I2C bus given by "DCB I2C table
3593 * entry index". Compare the result AND "mask" to "data".
3594 * If they're not equal, skip subsequent opcodes until condition is
3595 * inverted (INIT_NOT), or we hit INIT_RESUME
3596 */
3597
3598 uint8_t i2c_index = bios->data[offset + 1];
3599 uint8_t i2c_address = bios->data[offset + 2] >> 1;
3600 uint8_t reglo = bios->data[offset + 3];
3601 uint8_t reghi = bios->data[offset + 4];
3602 uint8_t mask = bios->data[offset + 5];
3603 uint8_t data = bios->data[offset + 6];
3604 struct nouveau_i2c_chan *chan;
3605 uint8_t buf0[2] = { reghi, reglo };
3606 uint8_t buf1[1];
3607 struct i2c_msg msg[2] = {
3608 { i2c_address, 0, 1, buf0 },
3609 { i2c_address, I2C_M_RD, 1, buf1 },
3610 };
3611 int ret;
3612
3613 /* no execute check by design */
3614
3615 BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X\n",
3616 offset, i2c_index, i2c_address);
3617
3618 chan = init_i2c_device_find(bios->dev, i2c_index);
3619 if (!chan)
3620 return -ENODEV;
3621
3622
3623 ret = i2c_transfer(&chan->adapter, msg, 2);
3624 if (ret < 0) {
3625 BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X:0x%02X, Value: [no device], "
3626 "Mask: 0x%02X, Data: 0x%02X\n",
3627 offset, reghi, reglo, mask, data);
3628 iexec->execute = 0;
3629 return 7;
3630 }
3631
3632 BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X:0x%02X, Value: 0x%02X, "
3633 "Mask: 0x%02X, Data: 0x%02X\n",
3634 offset, reghi, reglo, buf1[0], mask, data);
3635
3636 iexec->execute = ((buf1[0] & mask) == data);
3637
3638 return 7;
3639}
3640
6ee73861
BS		 3641static struct init_tbl_entry itbl_entry[] = {
3642 /* command name , id , length , offset , mult , command handler */
3643 /* INIT_PROG (0x31, 15, 10, 4) removed due to no example of use */
37383650
MK		 3644 { "INIT_IO_RESTRICT_PROG" , 0x32, init_io_restrict_prog },
3645 { "INIT_REPEAT" , 0x33, init_repeat },
3646 { "INIT_IO_RESTRICT_PLL" , 0x34, init_io_restrict_pll },
3647 { "INIT_END_REPEAT" , 0x36, init_end_repeat },
3648 { "INIT_COPY" , 0x37, init_copy },
3649 { "INIT_NOT" , 0x38, init_not },
3650 { "INIT_IO_FLAG_CONDITION" , 0x39, init_io_flag_condition },
25908b77
BS		 3651 { "INIT_DP_CONDITION" , 0x3A, init_dp_condition },
3652 { "INIT_OP_3B" , 0x3B, init_op_3b },
3653 { "INIT_OP_3C" , 0x3C, init_op_3c },
37383650
MK		 3654 { "INIT_INDEX_ADDRESS_LATCHED" , 0x49, init_idx_addr_latched },
3655 { "INIT_IO_RESTRICT_PLL2" , 0x4A, init_io_restrict_pll2 },
3656 { "INIT_PLL2" , 0x4B, init_pll2 },
3657 { "INIT_I2C_BYTE" , 0x4C, init_i2c_byte },
3658 { "INIT_ZM_I2C_BYTE" , 0x4D, init_zm_i2c_byte },
3659 { "INIT_ZM_I2C" , 0x4E, init_zm_i2c },
3660 { "INIT_TMDS" , 0x4F, init_tmds },
3661 { "INIT_ZM_TMDS_GROUP" , 0x50, init_zm_tmds_group },
3662 { "INIT_CR_INDEX_ADDRESS_LATCHED" , 0x51, init_cr_idx_adr_latch },
3663 { "INIT_CR" , 0x52, init_cr },
3664 { "INIT_ZM_CR" , 0x53, init_zm_cr },
3665 { "INIT_ZM_CR_GROUP" , 0x54, init_zm_cr_group },
3666 { "INIT_CONDITION_TIME" , 0x56, init_condition_time },
e3a1924f 3667 { "INIT_LTIME" , 0x57, init_ltime },
37383650 3668 { "INIT_ZM_REG_SEQUENCE" , 0x58, init_zm_reg_sequence },
6ee73861 3669 /* INIT_INDIRECT_REG (0x5A, 7, 0, 0) removed due to no example of use */
37383650 3670 { "INIT_SUB_DIRECT" , 0x5B, init_sub_direct },
b715d640 3671 { "INIT_I2C_IF" , 0x5E, init_i2c_if },
37383650
MK		 3672 { "INIT_COPY_NV_REG" , 0x5F, init_copy_nv_reg },
3673 { "INIT_ZM_INDEX_IO" , 0x62, init_zm_index_io },
3674 { "INIT_COMPUTE_MEM" , 0x63, init_compute_mem },
3675 { "INIT_RESET" , 0x65, init_reset },
3676 { "INIT_CONFIGURE_MEM" , 0x66, init_configure_mem },
3677 { "INIT_CONFIGURE_CLK" , 0x67, init_configure_clk },
3678 { "INIT_CONFIGURE_PREINIT" , 0x68, init_configure_preinit },
3679 { "INIT_IO" , 0x69, init_io },
3680 { "INIT_SUB" , 0x6B, init_sub },
3681 { "INIT_RAM_CONDITION" , 0x6D, init_ram_condition },
3682 { "INIT_NV_REG" , 0x6E, init_nv_reg },
3683 { "INIT_MACRO" , 0x6F, init_macro },
3684 { "INIT_DONE" , 0x71, init_done },
3685 { "INIT_RESUME" , 0x72, init_resume },
6ee73861 3686 /* INIT_RAM_CONDITION2 (0x73, 9, 0, 0) removed due to no example of use */
37383650
MK		 3687 { "INIT_TIME" , 0x74, init_time },
3688 { "INIT_CONDITION" , 0x75, init_condition },
3689 { "INIT_IO_CONDITION" , 0x76, init_io_condition },
3690 { "INIT_INDEX_IO" , 0x78, init_index_io },
3691 { "INIT_PLL" , 0x79, init_pll },
3692 { "INIT_ZM_REG" , 0x7A, init_zm_reg },
3693 { "INIT_RAM_RESTRICT_PLL" , 0x87, init_ram_restrict_pll },
3694 { "INIT_8C" , 0x8C, init_8c },
3695 { "INIT_8D" , 0x8D, init_8d },
3696 { "INIT_GPIO" , 0x8E, init_gpio },
3697 { "INIT_RAM_RESTRICT_ZM_REG_GROUP" , 0x8F, init_ram_restrict_zm_reg_group },
3698 { "INIT_COPY_ZM_REG" , 0x90, init_copy_zm_reg },
3699 { "INIT_ZM_REG_GROUP_ADDRESS_LATCHED" , 0x91, init_zm_reg_group_addr_latched },
3700 { "INIT_RESERVED" , 0x92, init_reserved },
3701 { "INIT_96" , 0x96, init_96 },
3702 { "INIT_97" , 0x97, init_97 },
3703 { "INIT_AUXCH" , 0x98, init_auxch },
3704 { "INIT_ZM_AUXCH" , 0x99, init_zm_auxch },
b715d640 3705 { "INIT_I2C_LONG_IF" , 0x9A, init_i2c_long_if },
37383650 3706 { NULL , 0 , NULL }
6ee73861
BS		 3707};
3708
6ee73861
BS		 3709#define MAX_TABLE_OPS 1000
3710
3711static int
3712parse_init_table(struct nvbios *bios, unsigned int offset,
3713 struct init_exec *iexec)
3714{
3715 /*
3716 * Parses all commands in an init table.
3717 *
3718 * We start out executing all commands found in the init table. Some
3719 * opcodes may change the status of iexec->execute to SKIP, which will
3720 * cause the following opcodes to perform no operation until the value
3721 * is changed back to EXECUTE.
3722 */
3723
92b96187 3724 int count = 0, i, ret;
6ee73861
BS		 3725 uint8_t id;
3726
3727 /*
3728 * Loop until INIT_DONE causes us to break out of the loop
3729 * (or until offset > bios length just in case... )
3730 * (and no more than MAX_TABLE_OPS iterations, just in case... )
3731 */
3732 while ((offset < bios->length) && (count++ < MAX_TABLE_OPS)) {
3733 id = bios->data[offset];
3734
3735 /* Find matching id in itbl_entry */
3736 for (i = 0; itbl_entry[i].name && (itbl_entry[i].id != id); i++)
3737 ;
3738
92b96187 3739 if (!itbl_entry[i].name) {
6ee73861
BS		 3740 NV_ERROR(bios->dev,
3741 "0x%04X: Init table command not found: "
3742 "0x%02X\n", offset, id);
3743 return -ENOENT;
3744 }
92b96187
BS		 3745
3746 BIOSLOG(bios, "0x%04X: [ (0x%02X) - %s ]\n", offset,
3747 itbl_entry[i].id, itbl_entry[i].name);
3748
3749 /* execute eventual command handler */
3750 ret = (*itbl_entry[i].handler)(bios, offset, iexec);
3751 if (ret < 0) {
3752 NV_ERROR(bios->dev, "0x%04X: Failed parsing init "
3753 "table opcode: %s %d\n", offset,
3754 itbl_entry[i].name, ret);
3755 }
3756
3757 if (ret <= 0)
3758 break;
3759
3760 /*
3761 * Add the offset of the current command including all data
3762 * of that command. The offset will then be pointing on the
3763 * next op code.
3764 */
3765 offset += ret;
6ee73861
BS		 3766 }
3767
3768 if (offset >= bios->length)
3769 NV_WARN(bios->dev,
3770 "Offset 0x%04X greater than known bios image length. "
3771 "Corrupt image?\n", offset);
3772 if (count >= MAX_TABLE_OPS)
3773 NV_WARN(bios->dev,
3774 "More than %d opcodes to a table is unlikely, "
3775 "is the bios image corrupt?\n", MAX_TABLE_OPS);
3776
3777 return 0;
3778}
3779
3780static void
3781parse_init_tables(struct nvbios *bios)
3782{
3783 /* Loops and calls parse_init_table() for each present table. */
3784
3785 int i = 0;
3786 uint16_t table;
3787 struct init_exec iexec = {true, false};
3788
3789 if (bios->old_style_init) {
3790 if (bios->init_script_tbls_ptr)
3791 parse_init_table(bios, bios->init_script_tbls_ptr, &iexec);
3792 if (bios->extra_init_script_tbl_ptr)
3793 parse_init_table(bios, bios->extra_init_script_tbl_ptr, &iexec);
3794
3795 return;
3796 }
3797
3798 while ((table = ROM16(bios->data[bios->init_script_tbls_ptr + i]))) {
3799 NV_INFO(bios->dev,
3800 "Parsing VBIOS init table %d at offset 0x%04X\n",
3801 i / 2, table);
3802 BIOSLOG(bios, "0x%04X: ------ Executing following commands ------\n", table);
3803
3804 parse_init_table(bios, table, &iexec);
3805 i += 2;
3806 }
3807}
3808
3809static uint16_t clkcmptable(struct nvbios *bios, uint16_t clktable, int pxclk)
3810{
3811 int compare_record_len, i = 0;
3812 uint16_t compareclk, scriptptr = 0;
3813
3814 if (bios->major_version < 5) /* pre BIT */
3815 compare_record_len = 3;
3816 else
3817 compare_record_len = 4;
3818
3819 do {
3820 compareclk = ROM16(bios->data[clktable + compare_record_len * i]);
3821 if (pxclk >= compareclk * 10) {
3822 if (bios->major_version < 5) {
3823 uint8_t tmdssub = bios->data[clktable + 2 + compare_record_len * i];
3824 scriptptr = ROM16(bios->data[bios->init_script_tbls_ptr + tmdssub * 2]);
3825 } else
3826 scriptptr = ROM16(bios->data[clktable + 2 + compare_record_len * i]);
3827 break;
3828 }
3829 i++;
3830 } while (compareclk);
3831
3832 return scriptptr;
3833}
3834
3835static void
3836run_digital_op_script(struct drm_device *dev, uint16_t scriptptr,
3837 struct dcb_entry *dcbent, int head, bool dl)
3838{
3839 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3840 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3841 struct init_exec iexec = {true, false};
3842
3843 NV_TRACE(dev, "0x%04X: Parsing digital output script table\n",
3844 scriptptr);
3845 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_44,
3846 head ? NV_CIO_CRE_44_HEADB : NV_CIO_CRE_44_HEADA);
3847 /* note: if dcb entries have been merged, index may be misleading */
3848 NVWriteVgaCrtc5758(dev, head, 0, dcbent->index);
3849 parse_init_table(bios, scriptptr, &iexec);
3850
3851 nv04_dfp_bind_head(dev, dcbent, head, dl);
3852}
3853
3854static int call_lvds_manufacturer_script(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script)
3855{
3856 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3857 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3858 uint8_t sub = bios->data[bios->fp.xlated_entry + script] + (bios->fp.link_c_increment && dcbent->or & OUTPUT_C ? 1 : 0);
3859 uint16_t scriptofs = ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]);
3860
3861 if (!bios->fp.xlated_entry || !sub || !scriptofs)
3862 return -EINVAL;
3863
3864 run_digital_op_script(dev, scriptofs, dcbent, head, bios->fp.dual_link);
3865
3866 if (script == LVDS_PANEL_OFF) {
3867 /* off-on delay in ms */
3868 msleep(ROM16(bios->data[bios->fp.xlated_entry + 7]));
3869 }
3870#ifdef __powerpc__
3871 /* Powerbook specific quirks */
d31e078d
FJ		 3872 if (script == LVDS_RESET &&
3873 (dev->pci_device == 0x0179 || dev->pci_device == 0x0189 ||
3874 dev->pci_device == 0x0329))
3875 nv_write_tmds(dev, dcbent->or, 0, 0x02, 0x72);
6ee73861
BS		 3876#endif
3877
3878 return 0;
3879}
3880
3881static int run_lvds_table(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script, int pxclk)
3882{
3883 /*
3884 * The BIT LVDS table's header has the information to setup the
3885 * necessary registers. Following the standard 4 byte header are:
3886 * A bitmask byte and a dual-link transition pxclk value for use in
3887 * selecting the init script when not using straps; 4 script pointers
3888 * for panel power, selected by output and on/off; and 8 table pointers
3889 * for panel init, the needed one determined by output, and bits in the
3890 * conf byte. These tables are similar to the TMDS tables, consisting
3891 * of a list of pxclks and script pointers.
3892 */
3893 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3894 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3895 unsigned int outputset = (dcbent->or == 4) ? 1 : 0;
3896 uint16_t scriptptr = 0, clktable;
6ee73861
BS		 3897
3898 /*
3899 * For now we assume version 3.0 table - g80 support will need some
3900 * changes
3901 */
3902
3903 switch (script) {
3904 case LVDS_INIT:
3905 return -ENOSYS;
3906 case LVDS_BACKLIGHT_ON:
3907 case LVDS_PANEL_ON:
3908 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 7 + outputset * 2]);
3909 break;
3910 case LVDS_BACKLIGHT_OFF:
3911 case LVDS_PANEL_OFF:
3912 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 11 + outputset * 2]);
3913 break;
3914 case LVDS_RESET:
f3bbb9cc
BS		 3915 clktable = bios->fp.lvdsmanufacturerpointer + 15;
3916 if (dcbent->or == 4)
3917 clktable += 8;
3918
6ee73861
BS		 3919 if (dcbent->lvdsconf.use_straps_for_mode) {
3920 if (bios->fp.dual_link)
f3bbb9cc
BS		 3921 clktable += 4;
3922 if (bios->fp.if_is_24bit)
3923 clktable += 2;
6ee73861
BS		 3924 } else {
3925 /* using EDID */
f3bbb9cc 3926 int cmpval_24bit = (dcbent->or == 4) ? 4 : 1;
6ee73861
BS		 3927
3928 if (bios->fp.dual_link) {
f3bbb9cc
BS		 3929 clktable += 4;
3930 cmpval_24bit <<= 1;
6ee73861 3931 }
f3bbb9cc
BS		 3932
3933 if (bios->fp.strapless_is_24bit & cmpval_24bit)
3934 clktable += 2;
6ee73861
BS		 3935 }
3936
f3bbb9cc 3937 clktable = ROM16(bios->data[clktable]);
6ee73861
BS		 3938 if (!clktable) {
3939 NV_ERROR(dev, "Pixel clock comparison table not found\n");
3940 return -ENOENT;
3941 }
3942 scriptptr = clkcmptable(bios, clktable, pxclk);
3943 }
3944
3945 if (!scriptptr) {
3946 NV_ERROR(dev, "LVDS output init script not found\n");
3947 return -ENOENT;
3948 }
3949 run_digital_op_script(dev, scriptptr, dcbent, head, bios->fp.dual_link);
3950
3951 return 0;
3952}
3953
3954int call_lvds_script(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script, int pxclk)
3955{
3956 /*
3957 * LVDS operations are multiplexed in an effort to present a single API
3958 * which works with two vastly differing underlying structures.
3959 * This acts as the demux
3960 */
3961
3962 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3963 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3964 uint8_t lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
3965 uint32_t sel_clk_binding, sel_clk;
3966 int ret;
3967
3968 if (bios->fp.last_script_invoc == (script << 1 | head) || !lvds_ver ||
3969 (lvds_ver >= 0x30 && script == LVDS_INIT))
3970 return 0;
3971
3972 if (!bios->fp.lvds_init_run) {
3973 bios->fp.lvds_init_run = true;
3974 call_lvds_script(dev, dcbent, head, LVDS_INIT, pxclk);
3975 }
3976
3977 if (script == LVDS_PANEL_ON && bios->fp.reset_after_pclk_change)
3978 call_lvds_script(dev, dcbent, head, LVDS_RESET, pxclk);
3979 if (script == LVDS_RESET && bios->fp.power_off_for_reset)
3980 call_lvds_script(dev, dcbent, head, LVDS_PANEL_OFF, pxclk);
3981
3982 NV_TRACE(dev, "Calling LVDS script %d:\n", script);
3983
3984 /* don't let script change pll->head binding */
3985 sel_clk_binding = bios_rd32(bios, NV_PRAMDAC_SEL_CLK) & 0x50000;
3986
3987 if (lvds_ver < 0x30)
3988 ret = call_lvds_manufacturer_script(dev, dcbent, head, script);
3989 else
3990 ret = run_lvds_table(dev, dcbent, head, script, pxclk);
3991
3992 bios->fp.last_script_invoc = (script << 1 | head);
3993
3994 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000;
3995 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
3996 /* some scripts set a value in NV_PBUS_POWERCTRL_2 and break video overlay */
3997 nvWriteMC(dev, NV_PBUS_POWERCTRL_2, 0);
3998
3999 return ret;
4000}
4001
4002struct lvdstableheader {
4003 uint8_t lvds_ver, headerlen, recordlen;
4004};
4005
4006static int parse_lvds_manufacturer_table_header(struct drm_device *dev, struct nvbios *bios, struct lvdstableheader *lth)
4007{
4008 /*
4009 * BMP version (0xa) LVDS table has a simple header of version and
4010 * record length. The BIT LVDS table has the typical BIT table header:
4011 * version byte, header length byte, record length byte, and a byte for
4012 * the maximum number of records that can be held in the table.
4013 */
4014
4015 uint8_t lvds_ver, headerlen, recordlen;
4016
4017 memset(lth, 0, sizeof(struct lvdstableheader));
4018
4019 if (bios->fp.lvdsmanufacturerpointer == 0x0) {
4020 NV_ERROR(dev, "Pointer to LVDS manufacturer table invalid\n");
4021 return -EINVAL;
4022 }
4023
4024 lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
4025
4026 switch (lvds_ver) {
4027 case 0x0a: /* pre NV40 */
4028 headerlen = 2;
4029 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
4030 break;
4031 case 0x30: /* NV4x */
4032 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
4033 if (headerlen < 0x1f) {
4034 NV_ERROR(dev, "LVDS table header not understood\n");
4035 return -EINVAL;
4036 }
4037 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2];
4038 break;
4039 case 0x40: /* G80/G90 */
4040 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
4041 if (headerlen < 0x7) {
4042 NV_ERROR(dev, "LVDS table header not understood\n");
4043 return -EINVAL;
4044 }
4045 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2];
4046 break;
4047 default:
4048 NV_ERROR(dev,
4049 "LVDS table revision %d.%d not currently supported\n",
4050 lvds_ver >> 4, lvds_ver & 0xf);
4051 return -ENOSYS;
4052 }
4053
4054 lth->lvds_ver = lvds_ver;
4055 lth->headerlen = headerlen;
4056 lth->recordlen = recordlen;
4057
4058 return 0;
4059}
4060
4061static int
4062get_fp_strap(struct drm_device *dev, struct nvbios *bios)
4063{
4064 struct drm_nouveau_private *dev_priv = dev->dev_private;
4065
4066 /*
4067 * The fp strap is normally dictated by the "User Strap" in
4068 * PEXTDEV_BOOT_0[20:16], but on BMP cards when bit 2 of the
4069 * Internal_Flags struct at 0x48 is set, the user strap gets overriden
4070 * by the PCI subsystem ID during POST, but not before the previous user
4071 * strap has been committed to CR58 for CR57=0xf on head A, which may be
4072 * read and used instead
4073 */
4074
4075 if (bios->major_version < 5 && bios->data[0x48] & 0x4)
4076 return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf;
4077
4078 if (dev_priv->card_type >= NV_50)
4079 return (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 24) & 0xf;
4080 else
4081 return (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 16) & 0xf;
4082}
4083
4084static int parse_fp_mode_table(struct drm_device *dev, struct nvbios *bios)
4085{
4086 uint8_t *fptable;
4087 uint8_t fptable_ver, headerlen = 0, recordlen, fpentries = 0xf, fpindex;
4088 int ret, ofs, fpstrapping;
4089 struct lvdstableheader lth;
4090
4091 if (bios->fp.fptablepointer == 0x0) {
4092 /* Apple cards don't have the fp table; the laptops use DDC */
4093 /* The table is also missing on some x86 IGPs */
4094#ifndef __powerpc__
4095 NV_ERROR(dev, "Pointer to flat panel table invalid\n");
4096#endif
04a39c57 4097 bios->digital_min_front_porch = 0x4b;
6ee73861
BS		 4098 return 0;
4099 }
4100
4101 fptable = &bios->data[bios->fp.fptablepointer];
4102 fptable_ver = fptable[0];
4103
4104 switch (fptable_ver) {
4105 /*
4106 * BMP version 0x5.0x11 BIOSen have version 1 like tables, but no
4107 * version field, and miss one of the spread spectrum/PWM bytes.
4108 * This could affect early GF2Go parts (not seen any appropriate ROMs
4109 * though). Here we assume that a version of 0x05 matches this case
4110 * (combining with a BMP version check would be better), as the
4111 * common case for the panel type field is 0x0005, and that is in
4112 * fact what we are reading the first byte of.
4113 */
4114 case 0x05: /* some NV10, 11, 15, 16 */
4115 recordlen = 42;
4116 ofs = -1;
4117 break;
4118 case 0x10: /* some NV15/16, and NV11+ */
4119 recordlen = 44;
4120 ofs = 0;
4121 break;
4122 case 0x20: /* NV40+ */
4123 headerlen = fptable[1];
4124 recordlen = fptable[2];
4125 fpentries = fptable[3];
4126 /*
4127 * fptable[4] is the minimum
4128 * RAMDAC_FP_HCRTC -> RAMDAC_FP_HSYNC_START gap
4129 */
04a39c57 4130 bios->digital_min_front_porch = fptable[4];
6ee73861
BS		 4131 ofs = -7;
4132 break;
4133 default:
4134 NV_ERROR(dev,
4135 "FP table revision %d.%d not currently supported\n",
4136 fptable_ver >> 4, fptable_ver & 0xf);
4137 return -ENOSYS;
4138 }
4139
4140 if (!bios->is_mobile) /* !mobile only needs digital_min_front_porch */
4141 return 0;
4142
4143 ret = parse_lvds_manufacturer_table_header(dev, bios, &lth);
4144 if (ret)
4145 return ret;
4146
4147 if (lth.lvds_ver == 0x30 || lth.lvds_ver == 0x40) {
4148 bios->fp.fpxlatetableptr = bios->fp.lvdsmanufacturerpointer +
4149 lth.headerlen + 1;
4150 bios->fp.xlatwidth = lth.recordlen;
4151 }
4152 if (bios->fp.fpxlatetableptr == 0x0) {
4153 NV_ERROR(dev, "Pointer to flat panel xlat table invalid\n");
4154 return -EINVAL;
4155 }
4156
4157 fpstrapping = get_fp_strap(dev, bios);
4158
4159 fpindex = bios->data[bios->fp.fpxlatetableptr +
4160 fpstrapping * bios->fp.xlatwidth];
4161
4162 if (fpindex > fpentries) {
4163 NV_ERROR(dev, "Bad flat panel table index\n");
4164 return -ENOENT;
4165 }
4166
4167 /* nv4x cards need both a strap value and fpindex of 0xf to use DDC */
4168 if (lth.lvds_ver > 0x10)
04a39c57 4169 bios->fp_no_ddc = fpstrapping != 0xf || fpindex != 0xf;
6ee73861
BS		 4170
4171 /*
4172 * If either the strap or xlated fpindex value are 0xf there is no
4173 * panel using a strap-derived bios mode present. this condition
4174 * includes, but is different from, the DDC panel indicator above
4175 */
4176 if (fpstrapping == 0xf || fpindex == 0xf)
4177 return 0;
4178
4179 bios->fp.mode_ptr = bios->fp.fptablepointer + headerlen +
4180 recordlen * fpindex + ofs;
4181
4182 NV_TRACE(dev, "BIOS FP mode: %dx%d (%dkHz pixel clock)\n",
4183 ROM16(bios->data[bios->fp.mode_ptr + 11]) + 1,
4184 ROM16(bios->data[bios->fp.mode_ptr + 25]) + 1,
4185 ROM16(bios->data[bios->fp.mode_ptr + 7]) * 10);
4186
4187 return 0;
4188}
4189
4190bool nouveau_bios_fp_mode(struct drm_device *dev, struct drm_display_mode *mode)
4191{
4192 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 4193 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 4194 uint8_t *mode_entry = &bios->data[bios->fp.mode_ptr];
4195
4196 if (!mode) /* just checking whether we can produce a mode */
4197 return bios->fp.mode_ptr;
4198
4199 memset(mode, 0, sizeof(struct drm_display_mode));
4200 /*
4201 * For version 1.0 (version in byte 0):
4202 * bytes 1-2 are "panel type", including bits on whether Colour/mono,
4203 * single/dual link, and type (TFT etc.)
4204 * bytes 3-6 are bits per colour in RGBX
4205 */
4206 mode->clock = ROM16(mode_entry[7]) * 10;
4207 /* bytes 9-10 is HActive */
4208 mode->hdisplay = ROM16(mode_entry[11]) + 1;
4209 /*
4210 * bytes 13-14 is HValid Start
4211 * bytes 15-16 is HValid End
4212 */
4213 mode->hsync_start = ROM16(mode_entry[17]) + 1;
4214 mode->hsync_end = ROM16(mode_entry[19]) + 1;
4215 mode->htotal = ROM16(mode_entry[21]) + 1;
4216 /* bytes 23-24, 27-30 similarly, but vertical */
4217 mode->vdisplay = ROM16(mode_entry[25]) + 1;
4218 mode->vsync_start = ROM16(mode_entry[31]) + 1;
4219 mode->vsync_end = ROM16(mode_entry[33]) + 1;
4220 mode->vtotal = ROM16(mode_entry[35]) + 1;
4221 mode->flags |= (mode_entry[37] & 0x10) ?
4222 DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
4223 mode->flags |= (mode_entry[37] & 0x1) ?
4224 DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
4225 /*
4226 * bytes 38-39 relate to spread spectrum settings
4227 * bytes 40-43 are something to do with PWM
4228 */
4229
4230 mode->status = MODE_OK;
4231 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
4232 drm_mode_set_name(mode);
4233 return bios->fp.mode_ptr;
4234}
4235
4236int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, bool *if_is_24bit)
4237{
4238 /*
4239 * The LVDS table header is (mostly) described in
4240 * parse_lvds_manufacturer_table_header(): the BIT header additionally
4241 * contains the dual-link transition pxclk (in 10s kHz), at byte 5 - if
4242 * straps are not being used for the panel, this specifies the frequency
4243 * at which modes should be set up in the dual link style.
4244 *
4245 * Following the header, the BMP (ver 0xa) table has several records,
3ad2f3fb 4246 * indexed by a separate xlat table, indexed in turn by the fp strap in
6ee73861
BS		 4247 * EXTDEV_BOOT. Each record had a config byte, followed by 6 script
4248 * numbers for use by INIT_SUB which controlled panel init and power,
4249 * and finally a dword of ms to sleep between power off and on
4250 * operations.
4251 *
4252 * In the BIT versions, the table following the header serves as an
4253 * integrated config and xlat table: the records in the table are
4254 * indexed by the FP strap nibble in EXTDEV_BOOT, and each record has
4255 * two bytes - the first as a config byte, the second for indexing the
4256 * fp mode table pointed to by the BIT 'D' table
4257 *
4258 * DDC is not used until after card init, so selecting the correct table
4259 * entry and setting the dual link flag for EDID equipped panels,
4260 * requiring tests against the native-mode pixel clock, cannot be done
4261 * until later, when this function should be called with non-zero pxclk
4262 */
4263 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 4264 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 4265 int fpstrapping = get_fp_strap(dev, bios), lvdsmanufacturerindex = 0;
4266 struct lvdstableheader lth;
4267 uint16_t lvdsofs;
04a39c57 4268 int ret, chip_version = bios->chip_version;
6ee73861
BS		 4269
4270 ret = parse_lvds_manufacturer_table_header(dev, bios, &lth);
4271 if (ret)
4272 return ret;
4273
4274 switch (lth.lvds_ver) {
4275 case 0x0a: /* pre NV40 */
4276 lvdsmanufacturerindex = bios->data[
4277 bios->fp.fpxlatemanufacturertableptr +
4278 fpstrapping];
4279
4280 /* we're done if this isn't the EDID panel case */
4281 if (!pxclk)
4282 break;
4283
4284 if (chip_version < 0x25) {
4285 /* nv17 behaviour
4286 *
4287 * It seems the old style lvds script pointer is reused
4288 * to select 18/24 bit colour depth for EDID panels.
4289 */
4290 lvdsmanufacturerindex =
4291 (bios->legacy.lvds_single_a_script_ptr & 1) ?
4292 2 : 0;
4293 if (pxclk >= bios->fp.duallink_transition_clk)
4294 lvdsmanufacturerindex++;
4295 } else if (chip_version < 0x30) {
4296 /* nv28 behaviour (off-chip encoder)
4297 *
4298 * nv28 does a complex dance of first using byte 121 of
4299 * the EDID to choose the lvdsmanufacturerindex, then
4300 * later attempting to match the EDID manufacturer and
4301 * product IDs in a table (signature 'pidt' (panel id
4302 * table?)), setting an lvdsmanufacturerindex of 0 and
4303 * an fp strap of the match index (or 0xf if none)
4304 */
4305 lvdsmanufacturerindex = 0;
4306 } else {
4307 /* nv31, nv34 behaviour */
4308 lvdsmanufacturerindex = 0;
4309 if (pxclk >= bios->fp.duallink_transition_clk)
4310 lvdsmanufacturerindex = 2;
4311 if (pxclk >= 140000)
4312 lvdsmanufacturerindex = 3;
4313 }
4314
4315 /*
4316 * nvidia set the high nibble of (cr57=f, cr58) to
4317 * lvdsmanufacturerindex in this case; we don't
4318 */
4319 break;
4320 case 0x30: /* NV4x */
4321 case 0x40: /* G80/G90 */
4322 lvdsmanufacturerindex = fpstrapping;
4323 break;
4324 default:
4325 NV_ERROR(dev, "LVDS table revision not currently supported\n");
4326 return -ENOSYS;
4327 }
4328
4329 lvdsofs = bios->fp.xlated_entry = bios->fp.lvdsmanufacturerpointer + lth.headerlen + lth.recordlen * lvdsmanufacturerindex;
4330 switch (lth.lvds_ver) {
4331 case 0x0a:
4332 bios->fp.power_off_for_reset = bios->data[lvdsofs] & 1;
4333 bios->fp.reset_after_pclk_change = bios->data[lvdsofs] & 2;
4334 bios->fp.dual_link = bios->data[lvdsofs] & 4;
4335 bios->fp.link_c_increment = bios->data[lvdsofs] & 8;
4336 *if_is_24bit = bios->data[lvdsofs] & 16;
4337 break;
4338 case 0x30:
f3bbb9cc 4339 case 0x40:
6ee73861
BS		 4340 /*
4341 * No sign of the "power off for reset" or "reset for panel
4342 * on" bits, but it's safer to assume we should
4343 */
4344 bios->fp.power_off_for_reset = true;
4345 bios->fp.reset_after_pclk_change = true;
f3bbb9cc 4346
6ee73861
BS		 4347 /*
4348 * It's ok lvdsofs is wrong for nv4x edid case; dual_link is
f3bbb9cc 4349 * over-written, and if_is_24bit isn't used
6ee73861
BS		 4350 */
4351 bios->fp.dual_link = bios->data[lvdsofs] & 1;
6ee73861
BS		 4352 bios->fp.if_is_24bit = bios->data[lvdsofs] & 2;
4353 bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4];
4354 bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10;
4355 break;
4356 }
4357
2eb92c80
BS		 4358 /* Dell Latitude D620 reports a too-high value for the dual-link
4359 * transition freq, causing us to program the panel incorrectly.
4360 *
4361 * It doesn't appear the VBIOS actually uses its transition freq
4362 * (90000kHz), instead it uses the "Number of LVDS channels" field
4363 * out of the panel ID structure (http://www.spwg.org/).
4364 *
4365 * For the moment, a quirk will do :)
4366 */
acae116c 4367 if (nv_match_device(dev, 0x01d7, 0x1028, 0x01c2))
2eb92c80 4368 bios->fp.duallink_transition_clk = 80000;
2eb92c80 4369
6ee73861
BS		 4370 /* set dual_link flag for EDID case */
4371 if (pxclk && (chip_version < 0x25 || chip_version > 0x28))
4372 bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk);
4373
4374 *dl = bios->fp.dual_link;
4375
4376 return 0;
4377}
4378
4379static uint8_t *
4380bios_output_config_match(struct drm_device *dev, struct dcb_entry *dcbent,
1eb38100
BS		 4381 uint16_t record, int record_len, int record_nr,
4382 bool match_link)
6ee73861
BS		 4383{
4384 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 4385 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 4386 uint32_t entry;
4387 uint16_t table;
4388 int i, v;
4389
1eb38100
BS		 4390 switch (dcbent->type) {
4391 case OUTPUT_TMDS:
4392 case OUTPUT_LVDS:
4393 case OUTPUT_DP:
4394 break;
4395 default:
4396 match_link = false;
4397 break;
4398 }
4399
6ee73861
BS		 4400 for (i = 0; i < record_nr; i++, record += record_len) {
4401 table = ROM16(bios->data[record]);
4402 if (!table)
4403 continue;
4404 entry = ROM32(bios->data[table]);
4405
1eb38100
BS		 4406 if (match_link) {
4407 v = (entry & 0x00c00000) >> 22;
4408 if (!(v & dcbent->sorconf.link))
4409 continue;
4410 }
4411
6ee73861
BS		 4412 v = (entry & 0x000f0000) >> 16;
4413 if (!(v & dcbent->or))
4414 continue;
4415
4416 v = (entry & 0x000000f0) >> 4;
4417 if (v != dcbent->location)
4418 continue;
4419
4420 v = (entry & 0x0000000f);
4421 if (v != dcbent->type)
4422 continue;
4423
4424 return &bios->data[table];
4425 }
4426
4427 return NULL;
4428}
4429
4430void *
4431nouveau_bios_dp_table(struct drm_device *dev, struct dcb_entry *dcbent,
4432 int *length)
4433{
4434 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 4435 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 4436 uint8_t *table;
4437
4438 if (!bios->display.dp_table_ptr) {
4439 NV_ERROR(dev, "No pointer to DisplayPort table\n");
4440 return NULL;
4441 }
4442 table = &bios->data[bios->display.dp_table_ptr];
4443
c52e53fd 4444 if (table[0] != 0x20 && table[0] != 0x21) {
6ee73861
BS		 4445 NV_ERROR(dev, "DisplayPort table version 0x%02x unknown\n",
4446 table[0]);
4447 return NULL;
4448 }
4449
4450 *length = table[4];
4451 return bios_output_config_match(dev, dcbent,
4452 bios->display.dp_table_ptr + table[1],
1eb38100 4453 table[2], table[3], table[0] >= 0x21);
6ee73861
BS		 4454}
4455
4456int
4457nouveau_bios_run_display_table(struct drm_device *dev, struct dcb_entry *dcbent,
4458 uint32_t sub, int pxclk)
4459{
4460 /*
4461 * The display script table is located by the BIT 'U' table.
4462 *
4463 * It contains an array of pointers to various tables describing
4464 * a particular output type. The first 32-bits of the output
4465 * tables contains similar information to a DCB entry, and is
4466 * used to decide whether that particular table is suitable for
4467 * the output you want to access.
4468 *
4469 * The "record header length" field here seems to indicate the
4470 * offset of the first configuration entry in the output tables.
4471 * This is 10 on most cards I've seen, but 12 has been witnessed
4472 * on DP cards, and there's another script pointer within the
4473 * header.
4474 *
4475 * offset + 0 ( 8 bits): version
4476 * offset + 1 ( 8 bits): header length
4477 * offset + 2 ( 8 bits): record length
4478 * offset + 3 ( 8 bits): number of records
4479 * offset + 4 ( 8 bits): record header length
4480 * offset + 5 (16 bits): pointer to first output script table
4481 */
4482
4483 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 4484 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 4485 uint8_t *table = &bios->data[bios->display.script_table_ptr];
4486 uint8_t *otable = NULL;
4487 uint16_t script;
4488 int i = 0;
4489
4490 if (!bios->display.script_table_ptr) {
4491 NV_ERROR(dev, "No pointer to output script table\n");
4492 return 1;
4493 }
4494
4495 /*
4496 * Nothing useful has been in any of the pre-2.0 tables I've seen,
4497 * so until they are, we really don't need to care.
4498 */
4499 if (table[0] < 0x20)
4500 return 1;
4501
4502 if (table[0] != 0x20 && table[0] != 0x21) {
4503 NV_ERROR(dev, "Output script table version 0x%02x unknown\n",
4504 table[0]);
4505 return 1;
4506 }
4507
4508 /*
4509 * The output script tables describing a particular output type
4510 * look as follows:
4511 *
4512 * offset + 0 (32 bits): output this table matches (hash of DCB)
4513 * offset + 4 ( 8 bits): unknown
4514 * offset + 5 ( 8 bits): number of configurations
4515 * offset + 6 (16 bits): pointer to some script
4516 * offset + 8 (16 bits): pointer to some script
4517 *
4518 * headerlen == 10
4519 * offset + 10 : configuration 0
4520 *
4521 * headerlen == 12
4522 * offset + 10 : pointer to some script
4523 * offset + 12 : configuration 0
4524 *
4525 * Each config entry is as follows:
4526 *
4527 * offset + 0 (16 bits): unknown, assumed to be a match value
4528 * offset + 2 (16 bits): pointer to script table (clock set?)
4529 * offset + 4 (16 bits): pointer to script table (reset?)
4530 *
4531 * There doesn't appear to be a count value to say how many
4532 * entries exist in each script table, instead, a 0 value in
4533 * the first 16-bit word seems to indicate both the end of the
4534 * list and the default entry. The second 16-bit word in the
4535 * script tables is a pointer to the script to execute.
4536 */
4537
ef2bb506 4538 NV_DEBUG_KMS(dev, "Searching for output entry for %d %d %d\n",
6ee73861
BS		 4539 dcbent->type, dcbent->location, dcbent->or);
4540 otable = bios_output_config_match(dev, dcbent, table[1] +
4541 bios->display.script_table_ptr,
1eb38100 4542 table[2], table[3], table[0] >= 0x21);
6ee73861 4543 if (!otable) {
54bf67de 4544 NV_DEBUG_KMS(dev, "failed to match any output table\n");
6ee73861
BS		 4545 return 1;
4546 }
4547
4548 if (pxclk < -2 || pxclk > 0) {
4549 /* Try to find matching script table entry */
4550 for (i = 0; i < otable[5]; i++) {
4551 if (ROM16(otable[table[4] + i*6]) == sub)
4552 break;
4553 }
4554
4555 if (i == otable[5]) {
4556 NV_ERROR(dev, "Table 0x%04x not found for %d/%d, "
4557 "using first\n",
4558 sub, dcbent->type, dcbent->or);
4559 i = 0;
4560 }
4561 }
4562
6ee73861
BS		 4563 if (pxclk == 0) {
4564 script = ROM16(otable[6]);
4565 if (!script) {
ef2bb506 4566 NV_DEBUG_KMS(dev, "output script 0 not found\n");
6ee73861
BS		 4567 return 1;
4568 }
4569
45a68a07 4570 NV_DEBUG_KMS(dev, "0x%04X: parsing output script 0\n", script);
39c9bfb4 4571 nouveau_bios_run_init_table(dev, script, dcbent);
6ee73861
BS		 4572 } else
4573 if (pxclk == -1) {
4574 script = ROM16(otable[8]);
4575 if (!script) {
ef2bb506 4576 NV_DEBUG_KMS(dev, "output script 1 not found\n");
6ee73861
BS		 4577 return 1;
4578 }
4579
45a68a07 4580 NV_DEBUG_KMS(dev, "0x%04X: parsing output script 1\n", script);
39c9bfb4 4581 nouveau_bios_run_init_table(dev, script, dcbent);
6ee73861
BS		 4582 } else
4583 if (pxclk == -2) {
4584 if (table[4] >= 12)
4585 script = ROM16(otable[10]);
4586 else
4587 script = 0;
4588 if (!script) {
ef2bb506 4589 NV_DEBUG_KMS(dev, "output script 2 not found\n");
6ee73861
BS		 4590 return 1;
4591 }
4592
45a68a07 4593 NV_DEBUG_KMS(dev, "0x%04X: parsing output script 2\n", script);
39c9bfb4 4594 nouveau_bios_run_init_table(dev, script, dcbent);
6ee73861
BS		 4595 } else
4596 if (pxclk > 0) {
4597 script = ROM16(otable[table[4] + i*6 + 2]);
4598 if (script)
4599 script = clkcmptable(bios, script, pxclk);
4600 if (!script) {
54bf67de 4601 NV_DEBUG_KMS(dev, "clock script 0 not found\n");
6ee73861
BS		 4602 return 1;
4603 }
4604
45a68a07 4605 NV_DEBUG_KMS(dev, "0x%04X: parsing clock script 0\n", script);
39c9bfb4 4606 nouveau_bios_run_init_table(dev, script, dcbent);
6ee73861
BS		 4607 } else
4608 if (pxclk < 0) {
4609 script = ROM16(otable[table[4] + i*6 + 4]);
4610 if (script)
4611 script = clkcmptable(bios, script, -pxclk);
4612 if (!script) {
ef2bb506 4613 NV_DEBUG_KMS(dev, "clock script 1 not found\n");
6ee73861
BS		 4614 return 1;
4615 }
4616
45a68a07 4617 NV_DEBUG_KMS(dev, "0x%04X: parsing clock script 1\n", script);
39c9bfb4 4618 nouveau_bios_run_init_table(dev, script, dcbent);
6ee73861
BS		 4619 }
4620
4621 return 0;
4622}
4623
4624
4625int run_tmds_table(struct drm_device *dev, struct dcb_entry *dcbent, int head, int pxclk)
4626{
4627 /*
4628 * the pxclk parameter is in kHz
4629 *
4630 * This runs the TMDS regs setting code found on BIT bios cards
4631 *
4632 * For ffs(or) == 1 use the first table, for ffs(or) == 2 and
4633 * ffs(or) == 3, use the second.
4634 */
4635
4636 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57
BS		 4637 struct nvbios *bios = &dev_priv->vbios;
4638 int cv = bios->chip_version;
6ee73861
BS		 4639 uint16_t clktable = 0, scriptptr;
4640 uint32_t sel_clk_binding, sel_clk;
4641
4642 /* pre-nv17 off-chip tmds uses scripts, post nv17 doesn't */
4643 if (cv >= 0x17 && cv != 0x1a && cv != 0x20 &&
4644 dcbent->location != DCB_LOC_ON_CHIP)
4645 return 0;
4646
4647 switch (ffs(dcbent->or)) {
4648 case 1:
4649 clktable = bios->tmds.output0_script_ptr;
4650 break;
4651 case 2:
4652 case 3:
4653 clktable = bios->tmds.output1_script_ptr;
4654 break;
4655 }
4656
4657 if (!clktable) {
4658 NV_ERROR(dev, "Pixel clock comparison table not found\n");
4659 return -EINVAL;
4660 }
4661
4662 scriptptr = clkcmptable(bios, clktable, pxclk);
4663
4664 if (!scriptptr) {
4665 NV_ERROR(dev, "TMDS output init script not found\n");
4666 return -ENOENT;
4667 }
4668
4669 /* don't let script change pll->head binding */
4670 sel_clk_binding = bios_rd32(bios, NV_PRAMDAC_SEL_CLK) & 0x50000;
4671 run_digital_op_script(dev, scriptptr, dcbent, head, pxclk >= 165000);
4672 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000;
4673 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
4674
4675 return 0;
4676}
4677
4678int get_pll_limits(struct drm_device *dev, uint32_t limit_match, struct pll_lims *pll_lim)
4679{
4680 /*
4681 * PLL limits table
4682 *
4683 * Version 0x10: NV30, NV31
4684 * One byte header (version), one record of 24 bytes
4685 * Version 0x11: NV36 - Not implemented
4686 * Seems to have same record style as 0x10, but 3 records rather than 1
4687 * Version 0x20: Found on Geforce 6 cards
4688 * Trivial 4 byte BIT header. 31 (0x1f) byte record length
4689 * Version 0x21: Found on Geforce 7, 8 and some Geforce 6 cards
4690 * 5 byte header, fifth byte of unknown purpose. 35 (0x23) byte record
4691 * length in general, some (integrated) have an extra configuration byte
4692 * Version 0x30: Found on Geforce 8, separates the register mapping
4693 * from the limits tables.
4694 */
4695
4696 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57
BS		 4697 struct nvbios *bios = &dev_priv->vbios;
4698 int cv = bios->chip_version, pllindex = 0;
6ee73861
BS		 4699 uint8_t pll_lim_ver = 0, headerlen = 0, recordlen = 0, entries = 0;
4700 uint32_t crystal_strap_mask, crystal_straps;
4701
4702 if (!bios->pll_limit_tbl_ptr) {
4703 if (cv == 0x30 || cv == 0x31 || cv == 0x35 || cv == 0x36 ||
4704 cv >= 0x40) {
4705 NV_ERROR(dev, "Pointer to PLL limits table invalid\n");
4706 return -EINVAL;
4707 }
4708 } else
4709 pll_lim_ver = bios->data[bios->pll_limit_tbl_ptr];
4710
4711 crystal_strap_mask = 1 << 6;
4712 /* open coded dev->twoHeads test */
4713 if (cv > 0x10 && cv != 0x15 && cv != 0x1a && cv != 0x20)
4714 crystal_strap_mask |= 1 << 22;
4715 crystal_straps = nvReadEXTDEV(dev, NV_PEXTDEV_BOOT_0) &
4716 crystal_strap_mask;
4717
4718 switch (pll_lim_ver) {
4719 /*
4720 * We use version 0 to indicate a pre limit table bios (single stage
4721 * pll) and load the hard coded limits instead.
4722 */
4723 case 0:
4724 break;
4725 case 0x10:
4726 case 0x11:
4727 /*
4728 * Strictly v0x11 has 3 entries, but the last two don't seem
4729 * to get used.
4730 */
4731 headerlen = 1;
4732 recordlen = 0x18;
4733 entries = 1;
4734 pllindex = 0;
4735 break;
4736 case 0x20:
4737 case 0x21:
4738 case 0x30:
4739 case 0x40:
4740 headerlen = bios->data[bios->pll_limit_tbl_ptr + 1];
4741 recordlen = bios->data[bios->pll_limit_tbl_ptr + 2];
4742 entries = bios->data[bios->pll_limit_tbl_ptr + 3];
4743 break;
4744 default:
4745 NV_ERROR(dev, "PLL limits table revision 0x%X not currently "
4746 "supported\n", pll_lim_ver);
4747 return -ENOSYS;
4748 }
4749
4750 /* initialize all members to zero */
4751 memset(pll_lim, 0, sizeof(struct pll_lims));
4752
4753 if (pll_lim_ver == 0x10 || pll_lim_ver == 0x11) {
4754 uint8_t *pll_rec = &bios->data[bios->pll_limit_tbl_ptr + headerlen + recordlen * pllindex];
4755
4756 pll_lim->vco1.minfreq = ROM32(pll_rec[0]);
4757 pll_lim->vco1.maxfreq = ROM32(pll_rec[4]);
4758 pll_lim->vco2.minfreq = ROM32(pll_rec[8]);
4759 pll_lim->vco2.maxfreq = ROM32(pll_rec[12]);
4760 pll_lim->vco1.min_inputfreq = ROM32(pll_rec[16]);
4761 pll_lim->vco2.min_inputfreq = ROM32(pll_rec[20]);
4762 pll_lim->vco1.max_inputfreq = pll_lim->vco2.max_inputfreq = INT_MAX;
4763
4764 /* these values taken from nv30/31/36 */
4765 pll_lim->vco1.min_n = 0x1;
4766 if (cv == 0x36)
4767 pll_lim->vco1.min_n = 0x5;
4768 pll_lim->vco1.max_n = 0xff;
4769 pll_lim->vco1.min_m = 0x1;
4770 pll_lim->vco1.max_m = 0xd;
4771 pll_lim->vco2.min_n = 0x4;
4772 /*
4773 * On nv30, 31, 36 (i.e. all cards with two stage PLLs with this
4774 * table version (apart from nv35)), N2 is compared to
4775 * maxN2 (0x46) and 10 * maxM2 (0x4), so set maxN2 to 0x28 and
4776 * save a comparison
4777 */
4778 pll_lim->vco2.max_n = 0x28;
4779 if (cv == 0x30 || cv == 0x35)
4780 /* only 5 bits available for N2 on nv30/35 */
4781 pll_lim->vco2.max_n = 0x1f;
4782 pll_lim->vco2.min_m = 0x1;
4783 pll_lim->vco2.max_m = 0x4;
4784 pll_lim->max_log2p = 0x7;
4785 pll_lim->max_usable_log2p = 0x6;
4786 } else if (pll_lim_ver == 0x20 || pll_lim_ver == 0x21) {
4787 uint16_t plloffs = bios->pll_limit_tbl_ptr + headerlen;
4788 uint32_t reg = 0; /* default match */
4789 uint8_t *pll_rec;
4790 int i;
4791
4792 /*
4793 * First entry is default match, if nothing better. warn if
4794 * reg field nonzero
4795 */
4796 if (ROM32(bios->data[plloffs]))
4797 NV_WARN(dev, "Default PLL limit entry has non-zero "
4798 "register field\n");
4799
4800 if (limit_match > MAX_PLL_TYPES)
4801 /* we've been passed a reg as the match */
4802 reg = limit_match;
4803 else /* limit match is a pll type */
4804 for (i = 1; i < entries && !reg; i++) {
4805 uint32_t cmpreg = ROM32(bios->data[plloffs + recordlen * i]);
4806
4807 if (limit_match == NVPLL &&
4808 (cmpreg == NV_PRAMDAC_NVPLL_COEFF || cmpreg == 0x4000))
4809 reg = cmpreg;
4810 if (limit_match == MPLL &&
4811 (cmpreg == NV_PRAMDAC_MPLL_COEFF || cmpreg == 0x4020))
4812 reg = cmpreg;
4813 if (limit_match == VPLL1 &&
4814 (cmpreg == NV_PRAMDAC_VPLL_COEFF || cmpreg == 0x4010))
4815 reg = cmpreg;
4816 if (limit_match == VPLL2 &&
4817 (cmpreg == NV_RAMDAC_VPLL2 || cmpreg == 0x4018))
4818 reg = cmpreg;
4819 }
4820
4821 for (i = 1; i < entries; i++)
4822 if (ROM32(bios->data[plloffs + recordlen * i]) == reg) {
4823 pllindex = i;
4824 break;
4825 }
4826
4827 pll_rec = &bios->data[plloffs + recordlen * pllindex];
4828
4829 BIOSLOG(bios, "Loading PLL limits for reg 0x%08x\n",
4830 pllindex ? reg : 0);
4831
4832 /*
4833 * Frequencies are stored in tables in MHz, kHz are more
4834 * useful, so we convert.
4835 */
4836
4837 /* What output frequencies can each VCO generate? */
4838 pll_lim->vco1.minfreq = ROM16(pll_rec[4]) * 1000;
4839 pll_lim->vco1.maxfreq = ROM16(pll_rec[6]) * 1000;
4840 pll_lim->vco2.minfreq = ROM16(pll_rec[8]) * 1000;
4841 pll_lim->vco2.maxfreq = ROM16(pll_rec[10]) * 1000;
4842
4843 /* What input frequencies they accept (past the m-divider)? */
4844 pll_lim->vco1.min_inputfreq = ROM16(pll_rec[12]) * 1000;
4845 pll_lim->vco2.min_inputfreq = ROM16(pll_rec[14]) * 1000;
4846 pll_lim->vco1.max_inputfreq = ROM16(pll_rec[16]) * 1000;
4847 pll_lim->vco2.max_inputfreq = ROM16(pll_rec[18]) * 1000;
4848
4849 /* What values are accepted as multiplier and divider? */
4850 pll_lim->vco1.min_n = pll_rec[20];
4851 pll_lim->vco1.max_n = pll_rec[21];
4852 pll_lim->vco1.min_m = pll_rec[22];
4853 pll_lim->vco1.max_m = pll_rec[23];
4854 pll_lim->vco2.min_n = pll_rec[24];
4855 pll_lim->vco2.max_n = pll_rec[25];
4856 pll_lim->vco2.min_m = pll_rec[26];
4857 pll_lim->vco2.max_m = pll_rec[27];
4858
4859 pll_lim->max_usable_log2p = pll_lim->max_log2p = pll_rec[29];
4860 if (pll_lim->max_log2p > 0x7)
4861 /* pll decoding in nv_hw.c assumes never > 7 */
4862 NV_WARN(dev, "Max log2 P value greater than 7 (%d)\n",
4863 pll_lim->max_log2p);
4864 if (cv < 0x60)
4865 pll_lim->max_usable_log2p = 0x6;
4866 pll_lim->log2p_bias = pll_rec[30];
4867
4868 if (recordlen > 0x22)
4869 pll_lim->refclk = ROM32(pll_rec[31]);
4870
4871 if (recordlen > 0x23 && pll_rec[35])
4872 NV_WARN(dev,
4873 "Bits set in PLL configuration byte (%x)\n",
4874 pll_rec[35]);
4875
4876 /* C51 special not seen elsewhere */
4877 if (cv == 0x51 && !pll_lim->refclk) {
4878 uint32_t sel_clk = bios_rd32(bios, NV_PRAMDAC_SEL_CLK);
4879
4880 if (((limit_match == NV_PRAMDAC_VPLL_COEFF || limit_match == VPLL1) && sel_clk & 0x20) ||
4881 ((limit_match == NV_RAMDAC_VPLL2 || limit_match == VPLL2) && sel_clk & 0x80)) {
4882 if (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_CHIP_ID_INDEX) < 0xa3)
4883 pll_lim->refclk = 200000;
4884 else
4885 pll_lim->refclk = 25000;
4886 }
4887 }
4888 } else if (pll_lim_ver == 0x30) { /* ver 0x30 */
4889 uint8_t *entry = &bios->data[bios->pll_limit_tbl_ptr + headerlen];
4890 uint8_t *record = NULL;
4891 int i;
4892
4893 BIOSLOG(bios, "Loading PLL limits for register 0x%08x\n",
4894 limit_match);
4895
4896 for (i = 0; i < entries; i++, entry += recordlen) {
4897 if (ROM32(entry[3]) == limit_match) {
4898 record = &bios->data[ROM16(entry[1])];
4899 break;
4900 }
4901 }
4902
4903 if (!record) {
4904 NV_ERROR(dev, "Register 0x%08x not found in PLL "
4905 "limits table", limit_match);
4906 return -ENOENT;
4907 }
4908
4909 pll_lim->vco1.minfreq = ROM16(record[0]) * 1000;
4910 pll_lim->vco1.maxfreq = ROM16(record[2]) * 1000;
4911 pll_lim->vco2.minfreq = ROM16(record[4]) * 1000;
4912 pll_lim->vco2.maxfreq = ROM16(record[6]) * 1000;
4913 pll_lim->vco1.min_inputfreq = ROM16(record[8]) * 1000;
4914 pll_lim->vco2.min_inputfreq = ROM16(record[10]) * 1000;
4915 pll_lim->vco1.max_inputfreq = ROM16(record[12]) * 1000;
4916 pll_lim->vco2.max_inputfreq = ROM16(record[14]) * 1000;
4917 pll_lim->vco1.min_n = record[16];
4918 pll_lim->vco1.max_n = record[17];
4919 pll_lim->vco1.min_m = record[18];
4920 pll_lim->vco1.max_m = record[19];
4921 pll_lim->vco2.min_n = record[20];
4922 pll_lim->vco2.max_n = record[21];
4923 pll_lim->vco2.min_m = record[22];
4924 pll_lim->vco2.max_m = record[23];
4925 pll_lim->max_usable_log2p = pll_lim->max_log2p = record[25];
4926 pll_lim->log2p_bias = record[27];
4927 pll_lim->refclk = ROM32(record[28]);
4928 } else if (pll_lim_ver) { /* ver 0x40 */
4929 uint8_t *entry = &bios->data[bios->pll_limit_tbl_ptr + headerlen];
4930 uint8_t *record = NULL;
4931 int i;
4932
4933 BIOSLOG(bios, "Loading PLL limits for register 0x%08x\n",
4934 limit_match);
4935
4936 for (i = 0; i < entries; i++, entry += recordlen) {
4937 if (ROM32(entry[3]) == limit_match) {
4938 record = &bios->data[ROM16(entry[1])];
4939 break;
4940 }
4941 }
4942
4943 if (!record) {
4944 NV_ERROR(dev, "Register 0x%08x not found in PLL "
4945 "limits table", limit_match);
4946 return -ENOENT;
4947 }
4948
4949 pll_lim->vco1.minfreq = ROM16(record[0]) * 1000;
4950 pll_lim->vco1.maxfreq = ROM16(record[2]) * 1000;
4951 pll_lim->vco1.min_inputfreq = ROM16(record[4]) * 1000;
4952 pll_lim->vco1.max_inputfreq = ROM16(record[6]) * 1000;
4953 pll_lim->vco1.min_m = record[8];
4954 pll_lim->vco1.max_m = record[9];
4955 pll_lim->vco1.min_n = record[10];
4956 pll_lim->vco1.max_n = record[11];
4957 pll_lim->min_p = record[12];
4958 pll_lim->max_p = record[13];
4959 /* where did this go to?? */
1ac7b528 4960 if ((entry[0] & 0xf0) == 0x80)
6ee73861
BS		 4961 pll_lim->refclk = 27000;
4962 else
4963 pll_lim->refclk = 100000;
4964 }
4965
4966 /*
4967 * By now any valid limit table ought to have set a max frequency for
4968 * vco1, so if it's zero it's either a pre limit table bios, or one
4969 * with an empty limit table (seen on nv18)
4970 */
4971 if (!pll_lim->vco1.maxfreq) {
4972 pll_lim->vco1.minfreq = bios->fminvco;
4973 pll_lim->vco1.maxfreq = bios->fmaxvco;
4974 pll_lim->vco1.min_inputfreq = 0;
4975 pll_lim->vco1.max_inputfreq = INT_MAX;
4976 pll_lim->vco1.min_n = 0x1;
4977 pll_lim->vco1.max_n = 0xff;
4978 pll_lim->vco1.min_m = 0x1;
4979 if (crystal_straps == 0) {
4980 /* nv05 does this, nv11 doesn't, nv10 unknown */
4981 if (cv < 0x11)
4982 pll_lim->vco1.min_m = 0x7;
4983 pll_lim->vco1.max_m = 0xd;
4984 } else {
4985 if (cv < 0x11)
4986 pll_lim->vco1.min_m = 0x8;
4987 pll_lim->vco1.max_m = 0xe;
4988 }
4989 if (cv < 0x17 || cv == 0x1a || cv == 0x20)
4990 pll_lim->max_log2p = 4;
4991 else
4992 pll_lim->max_log2p = 5;
4993 pll_lim->max_usable_log2p = pll_lim->max_log2p;
4994 }
4995
4996 if (!pll_lim->refclk)
4997 switch (crystal_straps) {
4998 case 0:
4999 pll_lim->refclk = 13500;
5000 break;
5001 case (1 << 6):
5002 pll_lim->refclk = 14318;
5003 break;
5004 case (1 << 22):
5005 pll_lim->refclk = 27000;
5006 break;
5007 case (1 << 22 | 1 << 6):
5008 pll_lim->refclk = 25000;
5009 break;
5010 }
5011
4c389f00
BS		 5012 NV_DEBUG(dev, "pll.vco1.minfreq: %d\n", pll_lim->vco1.minfreq);
5013 NV_DEBUG(dev, "pll.vco1.maxfreq: %d\n", pll_lim->vco1.maxfreq);
5014 NV_DEBUG(dev, "pll.vco1.min_inputfreq: %d\n", pll_lim->vco1.min_inputfreq);
5015 NV_DEBUG(dev, "pll.vco1.max_inputfreq: %d\n", pll_lim->vco1.max_inputfreq);
5016 NV_DEBUG(dev, "pll.vco1.min_n: %d\n", pll_lim->vco1.min_n);
5017 NV_DEBUG(dev, "pll.vco1.max_n: %d\n", pll_lim->vco1.max_n);
5018 NV_DEBUG(dev, "pll.vco1.min_m: %d\n", pll_lim->vco1.min_m);
5019 NV_DEBUG(dev, "pll.vco1.max_m: %d\n", pll_lim->vco1.max_m);
5020 if (pll_lim->vco2.maxfreq) {
5021 NV_DEBUG(dev, "pll.vco2.minfreq: %d\n", pll_lim->vco2.minfreq);
5022 NV_DEBUG(dev, "pll.vco2.maxfreq: %d\n", pll_lim->vco2.maxfreq);
5023 NV_DEBUG(dev, "pll.vco2.min_inputfreq: %d\n", pll_lim->vco2.min_inputfreq);
5024 NV_DEBUG(dev, "pll.vco2.max_inputfreq: %d\n", pll_lim->vco2.max_inputfreq);
5025 NV_DEBUG(dev, "pll.vco2.min_n: %d\n", pll_lim->vco2.min_n);
5026 NV_DEBUG(dev, "pll.vco2.max_n: %d\n", pll_lim->vco2.max_n);
5027 NV_DEBUG(dev, "pll.vco2.min_m: %d\n", pll_lim->vco2.min_m);
5028 NV_DEBUG(dev, "pll.vco2.max_m: %d\n", pll_lim->vco2.max_m);
5029 }
5030 if (!pll_lim->max_p) {
5031 NV_DEBUG(dev, "pll.max_log2p: %d\n", pll_lim->max_log2p);
5032 NV_DEBUG(dev, "pll.log2p_bias: %d\n", pll_lim->log2p_bias);
5033 } else {
5034 NV_DEBUG(dev, "pll.min_p: %d\n", pll_lim->min_p);
5035 NV_DEBUG(dev, "pll.max_p: %d\n", pll_lim->max_p);
5036 }
5037 NV_DEBUG(dev, "pll.refclk: %d\n", pll_lim->refclk);
6ee73861
BS		 5038
5039 return 0;
5040}
5041
5042static void parse_bios_version(struct drm_device *dev, struct nvbios *bios, uint16_t offset)
5043{
5044 /*
5045 * offset + 0 (8 bits): Micro version
5046 * offset + 1 (8 bits): Minor version
5047 * offset + 2 (8 bits): Chip version
5048 * offset + 3 (8 bits): Major version
5049 */
5050
5051 bios->major_version = bios->data[offset + 3];
04a39c57 5052 bios->chip_version = bios->data[offset + 2];
6ee73861
BS		 5053 NV_TRACE(dev, "Bios version %02x.%02x.%02x.%02x\n",
5054 bios->data[offset + 3], bios->data[offset + 2],
5055 bios->data[offset + 1], bios->data[offset]);
5056}
5057
5058static void parse_script_table_pointers(struct nvbios *bios, uint16_t offset)
5059{
5060 /*
5061 * Parses the init table segment for pointers used in script execution.
5062 *
5063 * offset + 0 (16 bits): init script tables pointer
5064 * offset + 2 (16 bits): macro index table pointer
5065 * offset + 4 (16 bits): macro table pointer
5066 * offset + 6 (16 bits): condition table pointer
5067 * offset + 8 (16 bits): io condition table pointer
5068 * offset + 10 (16 bits): io flag condition table pointer
5069 * offset + 12 (16 bits): init function table pointer
5070 */
5071
5072 bios->init_script_tbls_ptr = ROM16(bios->data[offset]);
5073 bios->macro_index_tbl_ptr = ROM16(bios->data[offset + 2]);
5074 bios->macro_tbl_ptr = ROM16(bios->data[offset + 4]);
5075 bios->condition_tbl_ptr = ROM16(bios->data[offset + 6]);
5076 bios->io_condition_tbl_ptr = ROM16(bios->data[offset + 8]);
5077 bios->io_flag_condition_tbl_ptr = ROM16(bios->data[offset + 10]);
5078 bios->init_function_tbl_ptr = ROM16(bios->data[offset + 12]);
5079}
5080
5081static int parse_bit_A_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
5082{
5083 /*
5084 * Parses the load detect values for g80 cards.
5085 *
5086 * offset + 0 (16 bits): loadval table pointer
5087 */
5088
5089 uint16_t load_table_ptr;
5090 uint8_t version, headerlen, entrylen, num_entries;
5091
5092 if (bitentry->length != 3) {
5093 NV_ERROR(dev, "Do not understand BIT A table\n");
5094 return -EINVAL;
5095 }
5096
5097 load_table_ptr = ROM16(bios->data[bitentry->offset]);
5098
5099 if (load_table_ptr == 0x0) {
5100 NV_ERROR(dev, "Pointer to BIT loadval table invalid\n");
5101 return -EINVAL;
5102 }
5103
5104 version = bios->data[load_table_ptr];
5105
5106 if (version != 0x10) {
5107 NV_ERROR(dev, "BIT loadval table version %d.%d not supported\n",
5108 version >> 4, version & 0xF);
5109 return -ENOSYS;
5110 }
5111
5112 headerlen = bios->data[load_table_ptr + 1];
5113 entrylen = bios->data[load_table_ptr + 2];
5114 num_entries = bios->data[load_table_ptr + 3];
5115
5116 if (headerlen != 4 || entrylen != 4 || num_entries != 2) {
5117 NV_ERROR(dev, "Do not understand BIT loadval table\n");
5118 return -EINVAL;
5119 }
5120
5121 /* First entry is normal dac, 2nd tv-out perhaps? */
04a39c57 5122 bios->dactestval = ROM32(bios->data[load_table_ptr + headerlen]) & 0x3ff;
6ee73861
BS		 5123
5124 return 0;
5125}
5126
5127static int parse_bit_C_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
5128{
5129 /*
5130 * offset + 8 (16 bits): PLL limits table pointer
5131 *
5132 * There's more in here, but that's unknown.
5133 */
5134
5135 if (bitentry->length < 10) {
5136 NV_ERROR(dev, "Do not understand BIT C table\n");
5137 return -EINVAL;
5138 }
5139
5140 bios->pll_limit_tbl_ptr = ROM16(bios->data[bitentry->offset + 8]);
5141
5142 return 0;
5143}
5144
5145static int parse_bit_display_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
5146{
5147 /*
5148 * Parses the flat panel table segment that the bit entry points to.
5149 * Starting at bitentry->offset:
5150 *
5151 * offset + 0 (16 bits): ??? table pointer - seems to have 18 byte
5152 * records beginning with a freq.
5153 * offset + 2 (16 bits): mode table pointer
5154 */
5155
5156 if (bitentry->length != 4) {
5157 NV_ERROR(dev, "Do not understand BIT display table\n");
5158 return -EINVAL;
5159 }
5160
5161 bios->fp.fptablepointer = ROM16(bios->data[bitentry->offset + 2]);
5162
5163 return 0;
5164}
5165
5166static int parse_bit_init_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
5167{
5168 /*
5169 * Parses the init table segment that the bit entry points to.
5170 *
5171 * See parse_script_table_pointers for layout
5172 */
5173
5174 if (bitentry->length < 14) {
5175 NV_ERROR(dev, "Do not understand init table\n");
5176 return -EINVAL;
5177 }
5178
5179 parse_script_table_pointers(bios, bitentry->offset);
5180
5181 if (bitentry->length >= 16)
5182 bios->some_script_ptr = ROM16(bios->data[bitentry->offset + 14]);
5183 if (bitentry->length >= 18)
5184 bios->init96_tbl_ptr = ROM16(bios->data[bitentry->offset + 16]);
5185
5186 return 0;
5187}
5188
5189static int parse_bit_i_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
5190{
5191 /*
5192 * BIT 'i' (info?) table
5193 *
5194 * offset + 0 (32 bits): BIOS version dword (as in B table)
5195 * offset + 5 (8 bits): BIOS feature byte (same as for BMP?)
5196 * offset + 13 (16 bits): pointer to table containing DAC load
5197 * detection comparison values
5198 *
5199 * There's other things in the table, purpose unknown
5200 */
5201
5202 uint16_t daccmpoffset;
5203 uint8_t dacver, dacheaderlen;
5204
5205 if (bitentry->length < 6) {
5206 NV_ERROR(dev, "BIT i table too short for needed information\n");
5207 return -EINVAL;
5208 }
5209
5210 parse_bios_version(dev, bios, bitentry->offset);
5211
5212 /*
5213 * bit 4 seems to indicate a mobile bios (doesn't suffer from BMP's
5214 * Quadro identity crisis), other bits possibly as for BMP feature byte
5215 */
5216 bios->feature_byte = bios->data[bitentry->offset + 5];
5217 bios->is_mobile = bios->feature_byte & FEATURE_MOBILE;
5218
5219 if (bitentry->length < 15) {
5220 NV_WARN(dev, "BIT i table not long enough for DAC load "
5221 "detection comparison table\n");
5222 return -EINVAL;
5223 }
5224
5225 daccmpoffset = ROM16(bios->data[bitentry->offset + 13]);
5226
5227 /* doesn't exist on g80 */
5228 if (!daccmpoffset)
5229 return 0;
5230
5231 /*
5232 * The first value in the table, following the header, is the
5233 * comparison value, the second entry is a comparison value for
5234 * TV load detection.
5235 */
5236
5237 dacver = bios->data[daccmpoffset];
5238 dacheaderlen = bios->data[daccmpoffset + 1];
5239
5240 if (dacver != 0x00 && dacver != 0x10) {
5241 NV_WARN(dev, "DAC load detection comparison table version "
5242 "%d.%d not known\n", dacver >> 4, dacver & 0xf);
5243 return -ENOSYS;
5244 }
5245
04a39c57
BS		 5246 bios->dactestval = ROM32(bios->data[daccmpoffset + dacheaderlen]);
5247 bios->tvdactestval = ROM32(bios->data[daccmpoffset + dacheaderlen + 4]);
6ee73861
BS		 5248
5249 return 0;
5250}
5251
5252static int parse_bit_lvds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
5253{
5254 /*
5255 * Parses the LVDS table segment that the bit entry points to.
5256 * Starting at bitentry->offset:
5257 *
5258 * offset + 0 (16 bits): LVDS strap xlate table pointer
5259 */
5260
5261 if (bitentry->length != 2) {
5262 NV_ERROR(dev, "Do not understand BIT LVDS table\n");
5263 return -EINVAL;
5264 }
5265
5266 /*
5267 * No idea if it's still called the LVDS manufacturer table, but
5268 * the concept's close enough.
5269 */
5270 bios->fp.lvdsmanufacturerpointer = ROM16(bios->data[bitentry->offset]);
5271
5272 return 0;
5273}
5274
5275static int
5276parse_bit_M_tbl_entry(struct drm_device *dev, struct nvbios *bios,
5277 struct bit_entry *bitentry)
5278{
5279 /*
5280 * offset + 2 (8 bits): number of options in an
5281 * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode option set
5282 * offset + 3 (16 bits): pointer to strap xlate table for RAM
5283 * restrict option selection
5284 *
5285 * There's a bunch of bits in this table other than the RAM restrict
5286 * stuff that we don't use - their use currently unknown
5287 */
5288
6ee73861
BS		 5289 /*
5290 * Older bios versions don't have a sufficiently long table for
5291 * what we want
5292 */
5293 if (bitentry->length < 0x5)
5294 return 0;
5295
5296 if (bitentry->id[1] < 2) {
37383650
MK		 5297 bios->ram_restrict_group_count = bios->data[bitentry->offset + 2];
5298 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 3]);
6ee73861 5299 } else {
37383650
MK		 5300 bios->ram_restrict_group_count = bios->data[bitentry->offset + 0];
5301 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 1]);
6ee73861
BS		 5302 }
5303
6ee73861
BS		 5304 return 0;
5305}
5306
5307static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
5308{
5309 /*
5310 * Parses the pointer to the TMDS table
5311 *
5312 * Starting at bitentry->offset:
5313 *
5314 * offset + 0 (16 bits): TMDS table pointer
5315 *
5316 * The TMDS table is typically found just before the DCB table, with a
5317 * characteristic signature of 0x11,0x13 (1.1 being version, 0x13 being
5318 * length?)
5319 *
5320 * At offset +7 is a pointer to a script, which I don't know how to
5321 * run yet.
5322 * At offset +9 is a pointer to another script, likewise
5323 * Offset +11 has a pointer to a table where the first word is a pxclk
5324 * frequency and the second word a pointer to a script, which should be
5325 * run if the comparison pxclk frequency is less than the pxclk desired.
5326 * This repeats for decreasing comparison frequencies
5327 * Offset +13 has a pointer to a similar table
5328 * The selection of table (and possibly +7/+9 script) is dictated by
5329 * "or" from the DCB.
5330 */
5331
5332 uint16_t tmdstableptr, script1, script2;
5333
5334 if (bitentry->length != 2) {
5335 NV_ERROR(dev, "Do not understand BIT TMDS table\n");
5336 return -EINVAL;
5337 }
5338
5339 tmdstableptr = ROM16(bios->data[bitentry->offset]);
98720bf4 5340 if (!tmdstableptr) {
6ee73861
BS		 5341 NV_ERROR(dev, "Pointer to TMDS table invalid\n");
5342 return -EINVAL;
5343 }
5344
98720bf4
BS		 5345 NV_INFO(dev, "TMDS table version %d.%d\n",
5346 bios->data[tmdstableptr] >> 4, bios->data[tmdstableptr] & 0xf);
5347
6ee73861 5348 /* nv50+ has v2.0, but we don't parse it atm */
98720bf4 5349 if (bios->data[tmdstableptr] != 0x11)
6ee73861 5350 return -ENOSYS;
6ee73861
BS		 5351
5352 /*
5353 * These two scripts are odd: they don't seem to get run even when
5354 * they are not stubbed.
5355 */
5356 script1 = ROM16(bios->data[tmdstableptr + 7]);
5357 script2 = ROM16(bios->data[tmdstableptr + 9]);
5358 if (bios->data[script1] != 'q' || bios->data[script2] != 'q')
5359 NV_WARN(dev, "TMDS table script pointers not stubbed\n");
5360
5361 bios->tmds.output0_script_ptr = ROM16(bios->data[tmdstableptr + 11]);
5362 bios->tmds.output1_script_ptr = ROM16(bios->data[tmdstableptr + 13]);
5363
5364 return 0;
5365}
5366
5367static int
5368parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios,
5369 struct bit_entry *bitentry)
5370{
5371 /*
5372 * Parses the pointer to the G80 output script tables
5373 *
5374 * Starting at bitentry->offset:
5375 *
5376 * offset + 0 (16 bits): output script table pointer
5377 */
5378
5379 uint16_t outputscripttableptr;
5380
5381 if (bitentry->length != 3) {
5382 NV_ERROR(dev, "Do not understand BIT U table\n");
5383 return -EINVAL;
5384 }
5385
5386 outputscripttableptr = ROM16(bios->data[bitentry->offset]);
5387 bios->display.script_table_ptr = outputscripttableptr;
5388 return 0;
5389}
5390
5391static int
5392parse_bit_displayport_tbl_entry(struct drm_device *dev, struct nvbios *bios,
5393 struct bit_entry *bitentry)
5394{
5395 bios->display.dp_table_ptr = ROM16(bios->data[bitentry->offset]);
5396 return 0;
5397}
5398
5399struct bit_table {
5400 const char id;
5401 int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
5402};
5403
5404#define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
5405
5406static int
5407parse_bit_table(struct nvbios *bios, const uint16_t bitoffset,
5408 struct bit_table *table)
5409{
5410 struct drm_device *dev = bios->dev;
5411 uint8_t maxentries = bios->data[bitoffset + 4];
5412 int i, offset;
5413 struct bit_entry bitentry;
5414
5415 for (i = 0, offset = bitoffset + 6; i < maxentries; i++, offset += 6) {
5416 bitentry.id[0] = bios->data[offset];
5417
5418 if (bitentry.id[0] != table->id)
5419 continue;
5420
5421 bitentry.id[1] = bios->data[offset + 1];
5422 bitentry.length = ROM16(bios->data[offset + 2]);
5423 bitentry.offset = ROM16(bios->data[offset + 4]);
5424
5425 return table->parse_fn(dev, bios, &bitentry);
5426 }
5427
5428 NV_INFO(dev, "BIT table '%c' not found\n", table->id);
5429 return -ENOSYS;
5430}
5431
5432static int
5433parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset)
5434{
5435 int ret;
5436
5437 /*
5438 * The only restriction on parsing order currently is having 'i' first
5439 * for use of bios->*_version or bios->feature_byte while parsing;
5440 * functions shouldn't be actually *doing* anything apart from pulling
5441 * data from the image into the bios struct, thus no interdependencies
5442 */
5443 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('i', i));
5444 if (ret) /* info? */
5445 return ret;
5446 if (bios->major_version >= 0x60) /* g80+ */
5447 parse_bit_table(bios, bitoffset, &BIT_TABLE('A', A));
5448 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('C', C));
5449 if (ret)
5450 return ret;
5451 parse_bit_table(bios, bitoffset, &BIT_TABLE('D', display));
5452 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('I', init));
5453 if (ret)
5454 return ret;
5455 parse_bit_table(bios, bitoffset, &BIT_TABLE('M', M)); /* memory? */
5456 parse_bit_table(bios, bitoffset, &BIT_TABLE('L', lvds));
5457 parse_bit_table(bios, bitoffset, &BIT_TABLE('T', tmds));
5458 parse_bit_table(bios, bitoffset, &BIT_TABLE('U', U));
5459 parse_bit_table(bios, bitoffset, &BIT_TABLE('d', displayport));
5460
5461 return 0;
5462}
5463
5464static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsigned int offset)
5465{
5466 /*
5467 * Parses the BMP structure for useful things, but does not act on them
5468 *
5469 * offset + 5: BMP major version
5470 * offset + 6: BMP minor version
5471 * offset + 9: BMP feature byte
5472 * offset + 10: BCD encoded BIOS version
5473 *
5474 * offset + 18: init script table pointer (for bios versions < 5.10h)
5475 * offset + 20: extra init script table pointer (for bios
5476 * versions < 5.10h)
5477 *
5478 * offset + 24: memory init table pointer (used on early bios versions)
5479 * offset + 26: SDR memory sequencing setup data table
5480 * offset + 28: DDR memory sequencing setup data table
5481 *
5482 * offset + 54: index of I2C CRTC pair to use for CRT output
5483 * offset + 55: index of I2C CRTC pair to use for TV output
5484 * offset + 56: index of I2C CRTC pair to use for flat panel output
5485 * offset + 58: write CRTC index for I2C pair 0
5486 * offset + 59: read CRTC index for I2C pair 0
5487 * offset + 60: write CRTC index for I2C pair 1
5488 * offset + 61: read CRTC index for I2C pair 1
5489 *
5490 * offset + 67: maximum internal PLL frequency (single stage PLL)
5491 * offset + 71: minimum internal PLL frequency (single stage PLL)
5492 *
5493 * offset + 75: script table pointers, as described in
5494 * parse_script_table_pointers
5495 *
5496 * offset + 89: TMDS single link output A table pointer
5497 * offset + 91: TMDS single link output B table pointer
5498 * offset + 95: LVDS single link output A table pointer
5499 * offset + 105: flat panel timings table pointer
5500 * offset + 107: flat panel strapping translation table pointer
5501 * offset + 117: LVDS manufacturer panel config table pointer
5502 * offset + 119: LVDS manufacturer strapping translation table pointer
5503 *
5504 * offset + 142: PLL limits table pointer
5505 *
5506 * offset + 156: minimum pixel clock for LVDS dual link
5507 */
5508
5509 uint8_t *bmp = &bios->data[offset], bmp_version_major, bmp_version_minor;
5510 uint16_t bmplength;
5511 uint16_t legacy_scripts_offset, legacy_i2c_offset;
5512
5513 /* load needed defaults in case we can't parse this info */
7f245b20
BS		 5514 bios->dcb.i2c[0].write = NV_CIO_CRE_DDC_WR__INDEX;
5515 bios->dcb.i2c[0].read = NV_CIO_CRE_DDC_STATUS__INDEX;
5516 bios->dcb.i2c[1].write = NV_CIO_CRE_DDC0_WR__INDEX;
5517 bios->dcb.i2c[1].read = NV_CIO_CRE_DDC0_STATUS__INDEX;
04a39c57 5518 bios->digital_min_front_porch = 0x4b;
6ee73861
BS		 5519 bios->fmaxvco = 256000;
5520 bios->fminvco = 128000;
5521 bios->fp.duallink_transition_clk = 90000;
5522
5523 bmp_version_major = bmp[5];
5524 bmp_version_minor = bmp[6];
5525
5526 NV_TRACE(dev, "BMP version %d.%d\n",
5527 bmp_version_major, bmp_version_minor);
5528
5529 /*
5530 * Make sure that 0x36 is blank and can't be mistaken for a DCB
5531 * pointer on early versions
5532 */
5533 if (bmp_version_major < 5)
5534 *(uint16_t *)&bios->data[0x36] = 0;
5535
5536 /*
5537 * Seems that the minor version was 1 for all major versions prior
5538 * to 5. Version 6 could theoretically exist, but I suspect BIT
5539 * happened instead.
5540 */
5541 if ((bmp_version_major < 5 && bmp_version_minor != 1) || bmp_version_major > 5) {
5542 NV_ERROR(dev, "You have an unsupported BMP version. "
5543 "Please send in your bios\n");
5544 return -ENOSYS;
5545 }
5546
5547 if (bmp_version_major == 0)
5548 /* nothing that's currently useful in this version */
5549 return 0;
5550 else if (bmp_version_major == 1)
5551 bmplength = 44; /* exact for 1.01 */
5552 else if (bmp_version_major == 2)
5553 bmplength = 48; /* exact for 2.01 */
5554 else if (bmp_version_major == 3)
5555 bmplength = 54;
5556 /* guessed - mem init tables added in this version */
5557 else if (bmp_version_major == 4 || bmp_version_minor < 0x1)
5558 /* don't know if 5.0 exists... */
5559 bmplength = 62;
5560 /* guessed - BMP I2C indices added in version 4*/
5561 else if (bmp_version_minor < 0x6)
5562 bmplength = 67; /* exact for 5.01 */
5563 else if (bmp_version_minor < 0x10)
5564 bmplength = 75; /* exact for 5.06 */
5565 else if (bmp_version_minor == 0x10)
5566 bmplength = 89; /* exact for 5.10h */
5567 else if (bmp_version_minor < 0x14)
5568 bmplength = 118; /* exact for 5.11h */
5569 else if (bmp_version_minor < 0x24)
5570 /*
5571 * Not sure of version where pll limits came in;
5572 * certainly exist by 0x24 though.
5573 */
5574 /* length not exact: this is long enough to get lvds members */
5575 bmplength = 123;
5576 else if (bmp_version_minor < 0x27)
5577 /*
5578 * Length not exact: this is long enough to get pll limit
5579 * member
5580 */
5581 bmplength = 144;
5582 else
5583 /*
5584 * Length not exact: this is long enough to get dual link
5585 * transition clock.
5586 */
5587 bmplength = 158;
5588
5589 /* checksum */
5590 if (nv_cksum(bmp, 8)) {
5591 NV_ERROR(dev, "Bad BMP checksum\n");
5592 return -EINVAL;
5593 }
5594
5595 /*
5596 * Bit 4 seems to indicate either a mobile bios or a quadro card --
5597 * mobile behaviour consistent (nv11+), quadro only seen nv18gl-nv36gl
5598 * (not nv10gl), bit 5 that the flat panel tables are present, and
5599 * bit 6 a tv bios.
5600 */
5601 bios->feature_byte = bmp[9];
5602
5603 parse_bios_version(dev, bios, offset + 10);
5604
5605 if (bmp_version_major < 5 || bmp_version_minor < 0x10)
5606 bios->old_style_init = true;
5607 legacy_scripts_offset = 18;
5608 if (bmp_version_major < 2)
5609 legacy_scripts_offset -= 4;
5610 bios->init_script_tbls_ptr = ROM16(bmp[legacy_scripts_offset]);
5611 bios->extra_init_script_tbl_ptr = ROM16(bmp[legacy_scripts_offset + 2]);
5612
5613 if (bmp_version_major > 2) { /* appears in BMP 3 */
5614 bios->legacy.mem_init_tbl_ptr = ROM16(bmp[24]);
5615 bios->legacy.sdr_seq_tbl_ptr = ROM16(bmp[26]);
5616 bios->legacy.ddr_seq_tbl_ptr = ROM16(bmp[28]);
5617 }
5618
5619 legacy_i2c_offset = 0x48; /* BMP version 2 & 3 */
5620 if (bmplength > 61)
5621 legacy_i2c_offset = offset + 54;
5622 bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset];
5623 bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1];
5624 bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2];
3af76454
FJ		 5625 if (bios->data[legacy_i2c_offset + 4])
5626 bios->dcb.i2c[0].write = bios->data[legacy_i2c_offset + 4];
5627 if (bios->data[legacy_i2c_offset + 5])
5628 bios->dcb.i2c[0].read = bios->data[legacy_i2c_offset + 5];
5629 if (bios->data[legacy_i2c_offset + 6])
5630 bios->dcb.i2c[1].write = bios->data[legacy_i2c_offset + 6];
5631 if (bios->data[legacy_i2c_offset + 7])
5632 bios->dcb.i2c[1].read = bios->data[legacy_i2c_offset + 7];
6ee73861
BS		 5633
5634 if (bmplength > 74) {
5635 bios->fmaxvco = ROM32(bmp[67]);
5636 bios->fminvco = ROM32(bmp[71]);
5637 }
5638 if (bmplength > 88)
5639 parse_script_table_pointers(bios, offset + 75);
5640 if (bmplength > 94) {
5641 bios->tmds.output0_script_ptr = ROM16(bmp[89]);
5642 bios->tmds.output1_script_ptr = ROM16(bmp[91]);
5643 /*
5644 * Never observed in use with lvds scripts, but is reused for
5645 * 18/24 bit panel interface default for EDID equipped panels
5646 * (if_is_24bit not set directly to avoid any oscillation).
5647 */
5648 bios->legacy.lvds_single_a_script_ptr = ROM16(bmp[95]);
5649 }
5650 if (bmplength > 108) {
5651 bios->fp.fptablepointer = ROM16(bmp[105]);
5652 bios->fp.fpxlatetableptr = ROM16(bmp[107]);
5653 bios->fp.xlatwidth = 1;
5654 }
5655 if (bmplength > 120) {
5656 bios->fp.lvdsmanufacturerpointer = ROM16(bmp[117]);
5657 bios->fp.fpxlatemanufacturertableptr = ROM16(bmp[119]);
5658 }
5659 if (bmplength > 143)
5660 bios->pll_limit_tbl_ptr = ROM16(bmp[142]);
5661
5662 if (bmplength > 157)
5663 bios->fp.duallink_transition_clk = ROM16(bmp[156]) * 10;
5664
5665 return 0;
5666}
5667
5668static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len)
5669{
5670 int i, j;
5671
5672 for (i = 0; i <= (n - len); i++) {
5673 for (j = 0; j < len; j++)
5674 if (data[i + j] != str[j])
5675 break;
5676 if (j == len)
5677 return i;
5678 }
5679
5680 return 0;
5681}
5682
6ee73861
BS		 5683static struct dcb_gpio_entry *
5684new_gpio_entry(struct nvbios *bios)
5685{
7f245b20 5686 struct dcb_gpio_table *gpio = &bios->dcb.gpio;
6ee73861
BS		 5687
5688 return &gpio->entry[gpio->entries++];
5689}
5690
5691struct dcb_gpio_entry *
5692nouveau_bios_gpio_entry(struct drm_device *dev, enum dcb_gpio_tag tag)
5693{
5694 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 5695 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 5696 int i;
5697
7f245b20
BS		 5698 for (i = 0; i < bios->dcb.gpio.entries; i++) {
5699 if (bios->dcb.gpio.entry[i].tag != tag)
6ee73861
BS		 5700 continue;
5701
7f245b20 5702 return &bios->dcb.gpio.entry[i];
6ee73861
BS		 5703 }
5704
5705 return NULL;
5706}
5707
5708static void
5709parse_dcb30_gpio_entry(struct nvbios *bios, uint16_t offset)
5710{
5711 struct dcb_gpio_entry *gpio;
5712 uint16_t ent = ROM16(bios->data[offset]);
5713 uint8_t line = ent & 0x1f,
5714 tag = ent >> 5 & 0x3f,
5715 flags = ent >> 11 & 0x1f;
5716
5717 if (tag == 0x3f)
5718 return;
5719
5720 gpio = new_gpio_entry(bios);
5721
5722 gpio->tag = tag;
5723 gpio->line = line;
5724 gpio->invert = flags != 4;
2535d71c 5725 gpio->entry = ent;
6ee73861
BS		 5726}
5727
5728static void
5729parse_dcb40_gpio_entry(struct nvbios *bios, uint16_t offset)
5730{
02faec09 5731 uint32_t entry = ROM32(bios->data[offset]);
6ee73861 5732 struct dcb_gpio_entry *gpio;
6ee73861 5733
02faec09 5734 if ((entry & 0x0000ff00) == 0x0000ff00)
6ee73861
BS		 5735 return;
5736
5737 gpio = new_gpio_entry(bios);
02faec09
BS		 5738 gpio->tag = (entry & 0x0000ff00) >> 8;
5739 gpio->line = (entry & 0x0000001f) >> 0;
5740 gpio->state_default = (entry & 0x01000000) >> 24;
5741 gpio->state[0] = (entry & 0x18000000) >> 27;
5742 gpio->state[1] = (entry & 0x60000000) >> 29;
5743 gpio->entry = entry;
6ee73861
BS		 5744}
5745
5746static void
5747parse_dcb_gpio_table(struct nvbios *bios)
5748{
5749 struct drm_device *dev = bios->dev;
7f245b20 5750 uint16_t gpio_table_ptr = bios->dcb.gpio_table_ptr;
6ee73861
BS		 5751 uint8_t *gpio_table = &bios->data[gpio_table_ptr];
5752 int header_len = gpio_table[1],
5753 entries = gpio_table[2],
5754 entry_len = gpio_table[3];
5755 void (*parse_entry)(struct nvbios *, uint16_t) = NULL;
5756 int i;
5757
7f245b20 5758 if (bios->dcb.version >= 0x40) {
6ee73861
BS		 5759 if (gpio_table_ptr && entry_len != 4) {
5760 NV_WARN(dev, "Invalid DCB GPIO table entry length.\n");
5761 return;
5762 }
5763
5764 parse_entry = parse_dcb40_gpio_entry;
5765
7f245b20 5766 } else if (bios->dcb.version >= 0x30) {
6ee73861
BS		 5767 if (gpio_table_ptr && entry_len != 2) {
5768 NV_WARN(dev, "Invalid DCB GPIO table entry length.\n");
5769 return;
5770 }
5771
5772 parse_entry = parse_dcb30_gpio_entry;
5773
7f245b20 5774 } else if (bios->dcb.version >= 0x22) {
6ee73861
BS		 5775 /*
5776 * DCBs older than v3.0 don't really have a GPIO
5777 * table, instead they keep some GPIO info at fixed
5778 * locations.
5779 */
5780 uint16_t dcbptr = ROM16(bios->data[0x36]);
5781 uint8_t *tvdac_gpio = &bios->data[dcbptr - 5];
5782
5783 if (tvdac_gpio[0] & 1) {
5784 struct dcb_gpio_entry *gpio = new_gpio_entry(bios);
5785
5786 gpio->tag = DCB_GPIO_TVDAC0;
5787 gpio->line = tvdac_gpio[1] >> 4;
5788 gpio->invert = tvdac_gpio[0] & 2;
5789 }
20d66daf
FJ		 5790 } else {
5791 /*
5792 * No systematic way to store GPIO info on pre-v2.2
5793 * DCBs, try to match the PCI device IDs.
5794 */
5795
5796 /* Apple iMac G4 NV18 */
acae116c 5797 if (nv_match_device(dev, 0x0189, 0x10de, 0x0010)) {
20d66daf
FJ		 5798 struct dcb_gpio_entry *gpio = new_gpio_entry(bios);
5799
5800 gpio->tag = DCB_GPIO_TVDAC0;
5801 gpio->line = 4;
5802 }
5803
6ee73861
BS		 5804 }
5805
5806 if (!gpio_table_ptr)
5807 return;
5808
5809 if (entries > DCB_MAX_NUM_GPIO_ENTRIES) {
5810 NV_WARN(dev, "Too many entries in the DCB GPIO table.\n");
5811 entries = DCB_MAX_NUM_GPIO_ENTRIES;
5812 }
5813
5814 for (i = 0; i < entries; i++)
5815 parse_entry(bios, gpio_table_ptr + header_len + entry_len * i);
5816}
5817
5818struct dcb_connector_table_entry *
5819nouveau_bios_connector_entry(struct drm_device *dev, int index)
5820{
5821 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 5822 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 5823 struct dcb_connector_table_entry *cte;
5824
7f245b20 5825 if (index >= bios->dcb.connector.entries)
6ee73861
BS		 5826 return NULL;
5827
7f245b20 5828 cte = &bios->dcb.connector.entry[index];
6ee73861
BS		 5829 if (cte->type == 0xff)
5830 return NULL;
5831
5832 return cte;
5833}
5834
f66fa771
BS		 5835static enum dcb_connector_type
5836divine_connector_type(struct nvbios *bios, int index)
5837{
5838 struct dcb_table *dcb = &bios->dcb;
5839 unsigned encoders = 0, type = DCB_CONNECTOR_NONE;
5840 int i;
5841
5842 for (i = 0; i < dcb->entries; i++) {
5843 if (dcb->entry[i].connector == index)
5844 encoders |= (1 << dcb->entry[i].type);
5845 }
5846
5847 if (encoders & (1 << OUTPUT_DP)) {
5848 if (encoders & (1 << OUTPUT_TMDS))
5849 type = DCB_CONNECTOR_DP;
5850 else
5851 type = DCB_CONNECTOR_eDP;
5852 } else
5853 if (encoders & (1 << OUTPUT_TMDS)) {
5854 if (encoders & (1 << OUTPUT_ANALOG))
5855 type = DCB_CONNECTOR_DVI_I;
5856 else
5857 type = DCB_CONNECTOR_DVI_D;
5858 } else
5859 if (encoders & (1 << OUTPUT_ANALOG)) {
5860 type = DCB_CONNECTOR_VGA;
5861 } else
5862 if (encoders & (1 << OUTPUT_LVDS)) {
5863 type = DCB_CONNECTOR_LVDS;
5864 } else
5865 if (encoders & (1 << OUTPUT_TV)) {
5866 type = DCB_CONNECTOR_TV_0;
5867 }
5868
5869 return type;
5870}
5871
53c44c3a
BS		 5872static void
5873apply_dcb_connector_quirks(struct nvbios *bios, int idx)
5874{
5875 struct dcb_connector_table_entry *cte = &bios->dcb.connector.entry[idx];
5876 struct drm_device *dev = bios->dev;
5877
5878 /* Gigabyte NX85T */
acae116c 5879 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
53c44c3a
BS		 5880 if (cte->type == DCB_CONNECTOR_HDMI_1)
5881 cte->type = DCB_CONNECTOR_DVI_I;
5882 }
5883}
5884
6ee73861
BS		 5885static void
5886parse_dcb_connector_table(struct nvbios *bios)
5887{
5888 struct drm_device *dev = bios->dev;
7f245b20 5889 struct dcb_connector_table *ct = &bios->dcb.connector;
6ee73861 5890 struct dcb_connector_table_entry *cte;
7f245b20 5891 uint8_t *conntab = &bios->data[bios->dcb.connector_table_ptr];
6ee73861
BS		 5892 uint8_t *entry;
5893 int i;
5894
7f245b20 5895 if (!bios->dcb.connector_table_ptr) {
ef2bb506 5896 NV_DEBUG_KMS(dev, "No DCB connector table present\n");
6ee73861
BS		 5897 return;
5898 }
5899
5900 NV_INFO(dev, "DCB connector table: VHER 0x%02x %d %d %d\n",
5901 conntab[0], conntab[1], conntab[2], conntab[3]);
5902 if ((conntab[0] != 0x30 && conntab[0] != 0x40) ||
5903 (conntab[3] != 2 && conntab[3] != 4)) {
5904 NV_ERROR(dev, " Unknown! Please report.\n");
5905 return;
5906 }
5907
5908 ct->entries = conntab[2];
5909
5910 entry = conntab + conntab[1];
5911 cte = &ct->entry[0];
5912 for (i = 0; i < conntab[2]; i++, entry += conntab[3], cte++) {
d544d623 5913 cte->index = i;
6ee73861
BS		 5914 if (conntab[3] == 2)
5915 cte->entry = ROM16(entry[0]);
5916 else
5917 cte->entry = ROM32(entry[0]);
f66fa771 5918
6ee73861 5919 cte->type = (cte->entry & 0x000000ff) >> 0;
d544d623 5920 cte->index2 = (cte->entry & 0x00000f00) >> 8;
6ee73861
BS		 5921 switch (cte->entry & 0x00033000) {
5922 case 0x00001000:
5923 cte->gpio_tag = 0x07;
5924 break;
5925 case 0x00002000:
5926 cte->gpio_tag = 0x08;
5927 break;
5928 case 0x00010000:
5929 cte->gpio_tag = 0x51;
5930 break;
5931 case 0x00020000:
5932 cte->gpio_tag = 0x52;
5933 break;
5934 default:
5935 cte->gpio_tag = 0xff;
5936 break;
5937 }
5938
5939 if (cte->type == 0xff)
5940 continue;
5941
53c44c3a
BS		 5942 apply_dcb_connector_quirks(bios, i);
5943
6ee73861
BS		 5944 NV_INFO(dev, " %d: 0x%08x: type 0x%02x idx %d tag 0x%02x\n",
5945 i, cte->entry, cte->type, cte->index, cte->gpio_tag);
f66fa771
BS		 5946
5947 /* check for known types, fallback to guessing the type
5948 * from attached encoders if we hit an unknown.
5949 */
5950 switch (cte->type) {
5951 case DCB_CONNECTOR_VGA:
5952 case DCB_CONNECTOR_TV_0:
5953 case DCB_CONNECTOR_TV_1:
5954 case DCB_CONNECTOR_TV_3:
5955 case DCB_CONNECTOR_DVI_I:
5956 case DCB_CONNECTOR_DVI_D:
5957 case DCB_CONNECTOR_LVDS:
5958 case DCB_CONNECTOR_DP:
5959 case DCB_CONNECTOR_eDP:
5960 case DCB_CONNECTOR_HDMI_0:
5961 case DCB_CONNECTOR_HDMI_1:
5962 break;
5963 default:
5964 cte->type = divine_connector_type(bios, cte->index);
da647d5b 5965 NV_WARN(dev, "unknown type, using 0x%02x\n", cte->type);
f66fa771
BS		 5966 break;
5967 }
5968
da647d5b
BS		 5969 if (nouveau_override_conntype) {
5970 int type = divine_connector_type(bios, cte->index);
5971 if (type != cte->type)
5972 NV_WARN(dev, " -> type 0x%02x\n", cte->type);
5973 }
5974
6ee73861
BS		 5975 }
5976}
5977
7f245b20 5978static struct dcb_entry *new_dcb_entry(struct dcb_table *dcb)
6ee73861
BS		 5979{
5980 struct dcb_entry *entry = &dcb->entry[dcb->entries];
5981
5982 memset(entry, 0, sizeof(struct dcb_entry));
5983 entry->index = dcb->entries++;
5984
5985 return entry;
5986}
5987
7f245b20 5988static void fabricate_vga_output(struct dcb_table *dcb, int i2c, int heads)
6ee73861
BS		 5989{
5990 struct dcb_entry *entry = new_dcb_entry(dcb);
5991
5992 entry->type = 0;
5993 entry->i2c_index = i2c;
5994 entry->heads = heads;
5995 entry->location = DCB_LOC_ON_CHIP;
1849719e 5996 entry->or = 1;
6ee73861
BS		 5997}
5998
7f245b20 5999static void fabricate_dvi_i_output(struct dcb_table *dcb, bool twoHeads)
6ee73861
BS		 6000{
6001 struct dcb_entry *entry = new_dcb_entry(dcb);
6002
6003 entry->type = 2;
6004 entry->i2c_index = LEGACY_I2C_PANEL;
6005 entry->heads = twoHeads ? 3 : 1;
6006 entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */
6007 entry->or = 1; /* means |0x10 gets set on CRE_LCD__INDEX */
6008 entry->duallink_possible = false; /* SiI164 and co. are single link */
6009
6010#if 0
6011 /*
6012 * For dvi-a either crtc probably works, but my card appears to only
6013 * support dvi-d. "nvidia" still attempts to program it for dvi-a,
6014 * doing the full fp output setup (program 0x6808.. fp dimension regs,
6015 * setting 0x680848 to 0x10000111 to enable, maybe setting 0x680880);
6016 * the monitor picks up the mode res ok and lights up, but no pixel
6017 * data appears, so the board manufacturer probably connected up the
6018 * sync lines, but missed the video traces / components
6019 *
6020 * with this introduction, dvi-a left as an exercise for the reader.
6021 */
6022 fabricate_vga_output(dcb, LEGACY_I2C_PANEL, entry->heads);
6023#endif
6024}
6025
7f245b20 6026static void fabricate_tv_output(struct dcb_table *dcb, bool twoHeads)
6ee73861
BS		 6027{
6028 struct dcb_entry *entry = new_dcb_entry(dcb);
6029
6030 entry->type = 1;
6031 entry->i2c_index = LEGACY_I2C_TV;
6032 entry->heads = twoHeads ? 3 : 1;
6033 entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */
6034}
6035
6036static bool
7f245b20 6037parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb,
6ee73861
BS		 6038 uint32_t conn, uint32_t conf, struct dcb_entry *entry)
6039{
6040 entry->type = conn & 0xf;
6041 entry->i2c_index = (conn >> 4) & 0xf;
6042 entry->heads = (conn >> 8) & 0xf;
7f245b20 6043 if (dcb->version >= 0x40)
6ee73861
BS		 6044 entry->connector = (conn >> 12) & 0xf;
6045 entry->bus = (conn >> 16) & 0xf;
6046 entry->location = (conn >> 20) & 0x3;
6047 entry->or = (conn >> 24) & 0xf;
6ee73861
BS		 6048
6049 switch (entry->type) {
6050 case OUTPUT_ANALOG:
6051 /*
6052 * Although the rest of a CRT conf dword is usually
6053 * zeros, mac biosen have stuff there so we must mask
6054 */
7f245b20 6055 entry->crtconf.maxfreq = (dcb->version < 0x30) ?
6ee73861
BS		 6056 (conf & 0xffff) * 10 :
6057 (conf & 0xff) * 10000;
6058 break;
6059 case OUTPUT_LVDS:
6060 {
6061 uint32_t mask;
6062 if (conf & 0x1)
6063 entry->lvdsconf.use_straps_for_mode = true;
7f245b20 6064 if (dcb->version < 0x22) {
6ee73861
BS		 6065 mask = ~0xd;
6066 /*
6067 * The laptop in bug 14567 lies and claims to not use
6068 * straps when it does, so assume all DCB 2.0 laptops
6069 * use straps, until a broken EDID using one is produced
6070 */
6071 entry->lvdsconf.use_straps_for_mode = true;
6072 /*
6073 * Both 0x4 and 0x8 show up in v2.0 tables; assume they
6074 * mean the same thing (probably wrong, but might work)
6075 */
6076 if (conf & 0x4 || conf & 0x8)
6077 entry->lvdsconf.use_power_scripts = true;
6078 } else {
a6ed76d7
BS		 6079 mask = ~0x7;
6080 if (conf & 0x2)
6081 entry->lvdsconf.use_acpi_for_edid = true;
6ee73861
BS		 6082 if (conf & 0x4)
6083 entry->lvdsconf.use_power_scripts = true;
c5875470 6084 entry->lvdsconf.sor.link = (conf & 0x00000030) >> 4;
6ee73861
BS		 6085 }
6086 if (conf & mask) {
6087 /*
6088 * Until we even try to use these on G8x, it's
6089 * useless reporting unknown bits. They all are.
6090 */
7f245b20 6091 if (dcb->version >= 0x40)
6ee73861
BS		 6092 break;
6093
6094 NV_ERROR(dev, "Unknown LVDS configuration bits, "
6095 "please report\n");
6096 }
6097 break;
6098 }
6099 case OUTPUT_TV:
6100 {
7f245b20 6101 if (dcb->version >= 0x30)
6ee73861
BS		 6102 entry->tvconf.has_component_output = conf & (0x8 << 4);
6103 else
6104 entry->tvconf.has_component_output = false;
6105
6106 break;
6107 }
6108 case OUTPUT_DP:
6109 entry->dpconf.sor.link = (conf & 0x00000030) >> 4;
6110 entry->dpconf.link_bw = (conf & 0x00e00000) >> 21;
6111 switch ((conf & 0x0f000000) >> 24) {
6112 case 0xf:
6113 entry->dpconf.link_nr = 4;
6114 break;
6115 case 0x3:
6116 entry->dpconf.link_nr = 2;
6117 break;
6118 default:
6119 entry->dpconf.link_nr = 1;
6120 break;
6121 }
6122 break;
6123 case OUTPUT_TMDS:
27d50fcc
FJ		 6124 if (dcb->version >= 0x40)
6125 entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4;
4a9f822f
FJ		 6126 else if (dcb->version >= 0x30)
6127 entry->tmdsconf.slave_addr = (conf & 0x00000700) >> 8;
27d50fcc
FJ		 6128 else if (dcb->version >= 0x22)
6129 entry->tmdsconf.slave_addr = (conf & 0x00000070) >> 4;
4a9f822f 6130
6ee73861 6131 break;
44a1246f 6132 case OUTPUT_EOL:
6ee73861 6133 /* weird g80 mobile type that "nv" treats as a terminator */
7f245b20 6134 dcb->entries--;
6ee73861 6135 return false;
e7cc51c5
BS		 6136 default:
6137 break;
6ee73861
BS		 6138 }
6139
23484874
BS		 6140 if (dcb->version < 0x40) {
6141 /* Normal entries consist of a single bit, but dual link has
6142 * the next most significant bit set too
6143 */
6144 entry->duallink_possible =
6145 ((1 << (ffs(entry->or) - 1)) * 3 == entry->or);
6146 } else {
6147 entry->duallink_possible = (entry->sorconf.link == 3);
6148 }
6149
6ee73861
BS		 6150 /* unsure what DCB version introduces this, 3.0? */
6151 if (conf & 0x100000)
6152 entry->i2c_upper_default = true;
6153
6154 return true;
6155}
6156
6157static bool
7f245b20 6158parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb,
6ee73861
BS		 6159 uint32_t conn, uint32_t conf, struct dcb_entry *entry)
6160{
b0d2de86
BS		 6161 switch (conn & 0x0000000f) {
6162 case 0:
6163 entry->type = OUTPUT_ANALOG;
6164 break;
6165 case 1:
6166 entry->type = OUTPUT_TV;
6167 break;
6168 case 2:
b0d2de86 6169 case 4:
fba67528 6170 if (conn & 0x10)
b0d2de86 6171 entry->type = OUTPUT_LVDS;
fba67528
FJ		 6172 else
6173 entry->type = OUTPUT_TMDS;
6174 break;
6175 case 3:
6176 entry->type = OUTPUT_LVDS;
b0d2de86
BS		 6177 break;
6178 default:
6179 NV_ERROR(dev, "Unknown DCB type %d\n", conn & 0x0000000f);
6180 return false;
6ee73861 6181 }
b0d2de86
BS		 6182
6183 entry->i2c_index = (conn & 0x0003c000) >> 14;
6184 entry->heads = ((conn & 0x001c0000) >> 18) + 1;
6185 entry->or = entry->heads; /* same as heads, hopefully safe enough */
6186 entry->location = (conn & 0x01e00000) >> 21;
6187 entry->bus = (conn & 0x0e000000) >> 25;
6ee73861
BS		 6188 entry->duallink_possible = false;
6189
6190 switch (entry->type) {
6191 case OUTPUT_ANALOG:
6192 entry->crtconf.maxfreq = (conf & 0xffff) * 10;
6193 break;
b0d2de86
BS		 6194 case OUTPUT_TV:
6195 entry->tvconf.has_component_output = false;
6ee73861 6196 break;
b0d2de86
BS		 6197 case OUTPUT_LVDS:
6198 if ((conn & 0x00003f00) != 0x10)
6199 entry->lvdsconf.use_straps_for_mode = true;
6200 entry->lvdsconf.use_power_scripts = true;
6201 break;
6202 default:
6ee73861
BS		 6203 break;
6204 }
6205
6206 return true;
6207}
6208
7f245b20 6209static bool parse_dcb_entry(struct drm_device *dev, struct dcb_table *dcb,
6ee73861
BS		 6210 uint32_t conn, uint32_t conf)
6211{
7f245b20 6212 struct dcb_entry *entry = new_dcb_entry(dcb);
6ee73861
BS		 6213 bool ret;
6214
7f245b20
BS		 6215 if (dcb->version >= 0x20)
6216 ret = parse_dcb20_entry(dev, dcb, conn, conf, entry);
6ee73861 6217 else
7f245b20 6218 ret = parse_dcb15_entry(dev, dcb, conn, conf, entry);
6ee73861
BS		 6219 if (!ret)
6220 return ret;
6221
7f245b20
BS		 6222 read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
6223 entry->i2c_index, &dcb->i2c[entry->i2c_index]);
6ee73861
BS		 6224
6225 return true;
6226}
6227
6228static
7f245b20 6229void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb)
6ee73861
BS		 6230{
6231 /*
6232 * DCB v2.0 lists each output combination separately.
6233 * Here we merge compatible entries to have fewer outputs, with
6234 * more options
6235 */
6236
6237 int i, newentries = 0;
6238
6239 for (i = 0; i < dcb->entries; i++) {
6240 struct dcb_entry *ient = &dcb->entry[i];
6241 int j;
6242
6243 for (j = i + 1; j < dcb->entries; j++) {
6244 struct dcb_entry *jent = &dcb->entry[j];
6245
6246 if (jent->type == 100) /* already merged entry */
6247 continue;
6248
6249 /* merge heads field when all other fields the same */
6250 if (jent->i2c_index == ient->i2c_index &&
6251 jent->type == ient->type &&
6252 jent->location == ient->location &&
6253 jent->or == ient->or) {
6254 NV_TRACE(dev, "Merging DCB entries %d and %d\n",
6255 i, j);
6256 ient->heads |= jent->heads;
6257 jent->type = 100; /* dummy value */
6258 }
6259 }
6260 }
6261
6262 /* Compact entries merged into others out of dcb */
6263 for (i = 0; i < dcb->entries; i++) {
6264 if (dcb->entry[i].type == 100)
6265 continue;
6266
6267 if (newentries != i) {
6268 dcb->entry[newentries] = dcb->entry[i];
6269 dcb->entry[newentries].index = newentries;
6270 }
6271 newentries++;
6272 }
6273
6274 dcb->entries = newentries;
6275}
6276
df4cf1b7
BS		 6277static bool
6278apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf)
6279{
6280 /* Dell Precision M6300
6281 * DCB entry 2: 02025312 00000010
6282 * DCB entry 3: 02026312 00000020
6283 *
6284 * Identical, except apparently a different connector on a
6285 * different SOR link. Not a clue how we're supposed to know
6286 * which one is in use if it even shares an i2c line...
6287 *
6288 * Ignore the connector on the second SOR link to prevent
6289 * nasty problems until this is sorted (assuming it's not a
6290 * VBIOS bug).
6291 */
acae116c 6292 if (nv_match_device(dev, 0x040d, 0x1028, 0x019b)) {
df4cf1b7
BS		 6293 if (*conn == 0x02026312 && *conf == 0x00000020)
6294 return false;
6295 }
6296
6297 return true;
6298}
6299
ed42f824
BS		 6300static int
6301parse_dcb_table(struct drm_device *dev, struct nvbios *bios, bool twoHeads)
6ee73861 6302{
ed42f824 6303 struct drm_nouveau_private *dev_priv = dev->dev_private;
7f245b20 6304 struct dcb_table *dcb = &bios->dcb;
ed42f824 6305 uint16_t dcbptr = 0, i2ctabptr = 0;
6ee73861
BS		 6306 uint8_t *dcbtable;
6307 uint8_t headerlen = 0x4, entries = DCB_MAX_NUM_ENTRIES;
6308 bool configblock = true;
6309 int recordlength = 8, confofs = 4;
6310 int i;
6311
6ee73861 6312 /* get the offset from 0x36 */
ed42f824
BS		 6313 if (dev_priv->card_type > NV_04) {
6314 dcbptr = ROM16(bios->data[0x36]);
6315 if (dcbptr == 0x0000)
6316 NV_WARN(dev, "No output data (DCB) found in BIOS\n");
6317 }
6ee73861 6318
ed42f824 6319 /* this situation likely means a really old card, pre DCB */
6ee73861 6320 if (dcbptr == 0x0) {
ed42f824 6321 NV_INFO(dev, "Assuming a CRT output exists\n");
6ee73861
BS		 6322 fabricate_vga_output(dcb, LEGACY_I2C_CRT, 1);
6323
ed42f824 6324 if (nv04_tv_identify(dev, bios->legacy.i2c_indices.tv) >= 0)
6ee73861
BS		 6325 fabricate_tv_output(dcb, twoHeads);
6326
6327 return 0;
6328 }
6329
6330 dcbtable = &bios->data[dcbptr];
6331
6332 /* get DCB version */
7f245b20 6333 dcb->version = dcbtable[0];
6ee73861 6334 NV_TRACE(dev, "Found Display Configuration Block version %d.%d\n",
7f245b20 6335 dcb->version >> 4, dcb->version & 0xf);
6ee73861 6336
7f245b20 6337 if (dcb->version >= 0x20) { /* NV17+ */
6ee73861
BS		 6338 uint32_t sig;
6339
7f245b20 6340 if (dcb->version >= 0x30) { /* NV40+ */
6ee73861
BS		 6341 headerlen = dcbtable[1];
6342 entries = dcbtable[2];
6343 recordlength = dcbtable[3];
6344 i2ctabptr = ROM16(dcbtable[4]);
6345 sig = ROM32(dcbtable[6]);
7f245b20
BS		 6346 dcb->gpio_table_ptr = ROM16(dcbtable[10]);
6347 dcb->connector_table_ptr = ROM16(dcbtable[20]);
6ee73861
BS		 6348 } else {
6349 i2ctabptr = ROM16(dcbtable[2]);
6350 sig = ROM32(dcbtable[4]);
6351 headerlen = 8;
6352 }
6353
6354 if (sig != 0x4edcbdcb) {
6355 NV_ERROR(dev, "Bad Display Configuration Block "
6356 "signature (%08X)\n", sig);
6357 return -EINVAL;
6358 }
7f245b20 6359 } else if (dcb->version >= 0x15) { /* some NV11 and NV20 */
6ee73861
BS		 6360 char sig[8] = { 0 };
6361
6362 strncpy(sig, (char *)&dcbtable[-7], 7);
6363 i2ctabptr = ROM16(dcbtable[2]);
6364 recordlength = 10;
6365 confofs = 6;
6366
6367 if (strcmp(sig, "DEV_REC")) {
6368 NV_ERROR(dev, "Bad Display Configuration Block "
6369 "signature (%s)\n", sig);
6370 return -EINVAL;
6371 }
6372 } else {
6373 /*
6374 * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but always
6375 * has the same single (crt) entry, even when tv-out present, so
6376 * the conclusion is this version cannot really be used.
6377 * v1.2 tables (some NV6/10, and NV15+) normally have the same
6378 * 5 entries, which are not specific to the card and so no use.
6379 * v1.2 does have an I2C table that read_dcb_i2c_table can
6380 * handle, but cards exist (nv11 in #14821) with a bad i2c table
6381 * pointer, so use the indices parsed in parse_bmp_structure.
6382 * v1.1 (NV5+, maybe some NV4) is entirely unhelpful
6383 */
6384 NV_TRACEWARN(dev, "No useful information in BIOS output table; "
6385 "adding all possible outputs\n");
6386 fabricate_vga_output(dcb, LEGACY_I2C_CRT, 1);
6387
6388 /*
6389 * Attempt to detect TV before DVI because the test
6390 * for the former is more accurate and it rules the
6391 * latter out.
6392 */
6393 if (nv04_tv_identify(dev,
6394 bios->legacy.i2c_indices.tv) >= 0)
6395 fabricate_tv_output(dcb, twoHeads);
6396
6397 else if (bios->tmds.output0_script_ptr ||
6398 bios->tmds.output1_script_ptr)
6399 fabricate_dvi_i_output(dcb, twoHeads);
6400
6401 return 0;
6402 }
6403
6404 if (!i2ctabptr)
6405 NV_WARN(dev, "No pointer to DCB I2C port table\n");
6406 else {
7f245b20
BS		 6407 dcb->i2c_table = &bios->data[i2ctabptr];
6408 if (dcb->version >= 0x30)
6409 dcb->i2c_default_indices = dcb->i2c_table[4];
4a9f822f
FJ		 6410
6411 /*
6412 * Parse the "management" I2C bus, used for hardware
6413 * monitoring and some external TMDS transmitters.
6414 */
6415 if (dcb->version >= 0x22) {
6416 int idx = (dcb->version >= 0x40 ?
6417 dcb->i2c_default_indices & 0xf :
6418 2);
6419
6420 read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
6421 idx, &dcb->i2c[idx]);
6422 }
6ee73861
BS		 6423 }
6424
6ee73861
BS		 6425 if (entries > DCB_MAX_NUM_ENTRIES)
6426 entries = DCB_MAX_NUM_ENTRIES;
6427
6428 for (i = 0; i < entries; i++) {
6429 uint32_t connection, config = 0;
6430
6431 connection = ROM32(dcbtable[headerlen + recordlength * i]);
6432 if (configblock)
6433 config = ROM32(dcbtable[headerlen + confofs + recordlength * i]);
6434
6435 /* seen on an NV11 with DCB v1.5 */
6436 if (connection == 0x00000000)
6437 break;
6438
6439 /* seen on an NV17 with DCB v2.0 */
6440 if (connection == 0xffffffff)
6441 break;
6442
6443 if ((connection & 0x0000000f) == 0x0000000f)
6444 continue;
6445
df4cf1b7
BS		 6446 if (!apply_dcb_encoder_quirks(dev, i, &connection, &config))
6447 continue;
6448
6ee73861
BS		 6449 NV_TRACEWARN(dev, "Raw DCB entry %d: %08x %08x\n",
6450 dcb->entries, connection, config);
6451
7f245b20 6452 if (!parse_dcb_entry(dev, dcb, connection, config))
6ee73861
BS		 6453 break;
6454 }
6455
6456 /*
6457 * apart for v2.1+ not being known for requiring merging, this
6458 * guarantees dcbent->index is the index of the entry in the rom image
6459 */
7f245b20 6460 if (dcb->version < 0x21)
6ee73861
BS		 6461 merge_like_dcb_entries(dev, dcb);
6462
54abb5dd
BS		 6463 if (!dcb->entries)
6464 return -ENXIO;
6465
6466 parse_dcb_gpio_table(bios);
6467 parse_dcb_connector_table(bios);
6468 return 0;
6ee73861
BS		 6469}
6470
6471static void
6472fixup_legacy_connector(struct nvbios *bios)
6473{
7f245b20 6474 struct dcb_table *dcb = &bios->dcb;
dc5bc4ed 6475 int i, i2c, i2c_conn[DCB_MAX_NUM_I2C_ENTRIES] = { };
6ee73861
BS		 6476
6477 /*
6478 * DCB 3.0 also has the table in most cases, but there are some cards
6479 * where the table is filled with stub entries, and the DCB entriy
6480 * indices are all 0. We don't need the connector indices on pre-G80
6481 * chips (yet?) so limit the use to DCB 4.0 and above.
6482 */
7f245b20 6483 if (dcb->version >= 0x40)
6ee73861
BS		 6484 return;
6485
dc5bc4ed
BS		 6486 dcb->connector.entries = 0;
6487
6ee73861
BS		 6488 /*
6489 * No known connector info before v3.0, so make it up. the rule here
6490 * is: anything on the same i2c bus is considered to be on the same
6491 * connector. any output without an associated i2c bus is assigned
6492 * its own unique connector index.
6493 */
6494 for (i = 0; i < dcb->entries; i++) {
6ee73861
BS		 6495 /*
6496 * Ignore the I2C index for on-chip TV-out, as there
6497 * are cards with bogus values (nv31m in bug 23212),
6498 * and it's otherwise useless.
6499 */
6500 if (dcb->entry[i].type == OUTPUT_TV &&
dc5bc4ed 6501 dcb->entry[i].location == DCB_LOC_ON_CHIP)
6ee73861 6502 dcb->entry[i].i2c_index = 0xf;
dc5bc4ed
BS		 6503 i2c = dcb->entry[i].i2c_index;
6504
6505 if (i2c_conn[i2c]) {
6506 dcb->entry[i].connector = i2c_conn[i2c] - 1;
6ee73861
BS		 6507 continue;
6508 }
6509
dc5bc4ed
BS		 6510 dcb->entry[i].connector = dcb->connector.entries++;
6511 if (i2c != 0xf)
6512 i2c_conn[i2c] = dcb->connector.entries;
6ee73861
BS		 6513 }
6514
dc5bc4ed
BS		 6515 /* Fake the connector table as well as just connector indices */
6516 for (i = 0; i < dcb->connector.entries; i++) {
6517 dcb->connector.entry[i].index = i;
6518 dcb->connector.entry[i].type = divine_connector_type(bios, i);
6519 dcb->connector.entry[i].gpio_tag = 0xff;
6ee73861
BS		 6520 }
6521}
6522
6523static void
6524fixup_legacy_i2c(struct nvbios *bios)
6525{
7f245b20 6526 struct dcb_table *dcb = &bios->dcb;
6ee73861
BS		 6527 int i;
6528
6529 for (i = 0; i < dcb->entries; i++) {
6530 if (dcb->entry[i].i2c_index == LEGACY_I2C_CRT)
6531 dcb->entry[i].i2c_index = bios->legacy.i2c_indices.crt;
6532 if (dcb->entry[i].i2c_index == LEGACY_I2C_PANEL)
6533 dcb->entry[i].i2c_index = bios->legacy.i2c_indices.panel;
6534 if (dcb->entry[i].i2c_index == LEGACY_I2C_TV)
6535 dcb->entry[i].i2c_index = bios->legacy.i2c_indices.tv;
6536 }
6537}
6538
6539static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry)
6540{
6541 /*
6542 * The header following the "HWSQ" signature has the number of entries,
6543 * and the entry size
6544 *
6545 * An entry consists of a dword to write to the sequencer control reg
6546 * (0x00001304), followed by the ucode bytes, written sequentially,
6547 * starting at reg 0x00001400
6548 */
6549
6550 uint8_t bytes_to_write;
6551 uint16_t hwsq_entry_offset;
6552 int i;
6553
6554 if (bios->data[hwsq_offset] <= entry) {
6555 NV_ERROR(dev, "Too few entries in HW sequencer table for "
6556 "requested entry\n");
6557 return -ENOENT;
6558 }
6559
6560 bytes_to_write = bios->data[hwsq_offset + 1];
6561
6562 if (bytes_to_write != 36) {
6563 NV_ERROR(dev, "Unknown HW sequencer entry size\n");
6564 return -EINVAL;
6565 }
6566
6567 NV_TRACE(dev, "Loading NV17 power sequencing microcode\n");
6568
6569 hwsq_entry_offset = hwsq_offset + 2 + entry * bytes_to_write;
6570
6571 /* set sequencer control */
6572 bios_wr32(bios, 0x00001304, ROM32(bios->data[hwsq_entry_offset]));
6573 bytes_to_write -= 4;
6574
6575 /* write ucode */
6576 for (i = 0; i < bytes_to_write; i += 4)
6577 bios_wr32(bios, 0x00001400 + i, ROM32(bios->data[hwsq_entry_offset + i + 4]));
6578
6579 /* twiddle NV_PBUS_DEBUG_4 */
6580 bios_wr32(bios, NV_PBUS_DEBUG_4, bios_rd32(bios, NV_PBUS_DEBUG_4) | 0x18);
6581
6582 return 0;
6583}
6584
6585static int load_nv17_hw_sequencer_ucode(struct drm_device *dev,
6586 struct nvbios *bios)
6587{
6588 /*
6589 * BMP based cards, from NV17, need a microcode loading to correctly
6590 * control the GPIO etc for LVDS panels
6591 *
6592 * BIT based cards seem to do this directly in the init scripts
6593 *
6594 * The microcode entries are found by the "HWSQ" signature.
6595 */
6596
6597 const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' };
6598 const int sz = sizeof(hwsq_signature);
6599 int hwsq_offset;
6600
6601 hwsq_offset = findstr(bios->data, bios->length, hwsq_signature, sz);
6602 if (!hwsq_offset)
6603 return 0;
6604
6605 /* always use entry 0? */
6606 return load_nv17_hwsq_ucode_entry(dev, bios, hwsq_offset + sz, 0);
6607}
6608
6609uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev)
6610{
6611 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6612 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6613 const uint8_t edid_sig[] = {
6614 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 };
6615 uint16_t offset = 0;
6616 uint16_t newoffset;
6617 int searchlen = NV_PROM_SIZE;
6618
6619 if (bios->fp.edid)
6620 return bios->fp.edid;
6621
6622 while (searchlen) {
6623 newoffset = findstr(&bios->data[offset], searchlen,
6624 edid_sig, 8);
6625 if (!newoffset)
6626 return NULL;
6627 offset += newoffset;
6628 if (!nv_cksum(&bios->data[offset], EDID1_LEN))
6629 break;
6630
6631 searchlen -= offset;
6632 offset++;
6633 }
6634
6635 NV_TRACE(dev, "Found EDID in BIOS\n");
6636
6637 return bios->fp.edid = &bios->data[offset];
6638}
6639
6640void
6641nouveau_bios_run_init_table(struct drm_device *dev, uint16_t table,
6642 struct dcb_entry *dcbent)
6643{
6644 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6645 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6646 struct init_exec iexec = { true, false };
6647
d9184fa9 6648 mutex_lock(&bios->lock);
6ee73861
BS		 6649 bios->display.output = dcbent;
6650 parse_init_table(bios, table, &iexec);
6651 bios->display.output = NULL;
d9184fa9 6652 mutex_unlock(&bios->lock);
6ee73861
BS		 6653}
6654
6655static bool NVInitVBIOS(struct drm_device *dev)
6656{
6657 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6658 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6659
6660 memset(bios, 0, sizeof(struct nvbios));
d9184fa9 6661 mutex_init(&bios->lock);
6ee73861
BS		 6662 bios->dev = dev;
6663
6664 if (!NVShadowVBIOS(dev, bios->data))
6665 return false;
6666
6667 bios->length = NV_PROM_SIZE;
6668 return true;
6669}
6670
6671static int nouveau_parse_vbios_struct(struct drm_device *dev)
6672{
6673 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6674 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6675 const uint8_t bit_signature[] = { 0xff, 0xb8, 'B', 'I', 'T' };
6676 const uint8_t bmp_signature[] = { 0xff, 0x7f, 'N', 'V', 0x0 };
6677 int offset;
6678
6679 offset = findstr(bios->data, bios->length,
6680 bit_signature, sizeof(bit_signature));
6681 if (offset) {
6682 NV_TRACE(dev, "BIT BIOS found\n");
6683 return parse_bit_structure(bios, offset + 6);
6684 }
6685
6686 offset = findstr(bios->data, bios->length,
6687 bmp_signature, sizeof(bmp_signature));
6688 if (offset) {
6689 NV_TRACE(dev, "BMP BIOS found\n");
6690 return parse_bmp_structure(dev, bios, offset);
6691 }
6692
6693 NV_ERROR(dev, "No known BIOS signature found\n");
6694 return -ENODEV;
6695}
6696
6697int
6698nouveau_run_vbios_init(struct drm_device *dev)
6699{
6700 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6701 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6702 int i, ret = 0;
6703
946fd35f
FJ		 6704 /* Reset the BIOS head to 0. */
6705 bios->state.crtchead = 0;
6ee73861
BS		 6706
6707 if (bios->major_version < 5) /* BMP only */
6708 load_nv17_hw_sequencer_ucode(dev, bios);
6709
6710 if (bios->execute) {
6711 bios->fp.last_script_invoc = 0;
6712 bios->fp.lvds_init_run = false;
6713 }
6714
6715 parse_init_tables(bios);
6716
6717 /*
6718 * Runs some additional script seen on G8x VBIOSen. The VBIOS'
6719 * parser will run this right after the init tables, the binary
6720 * driver appears to run it at some point later.
6721 */
6722 if (bios->some_script_ptr) {
6723 struct init_exec iexec = {true, false};
6724
6725 NV_INFO(dev, "Parsing VBIOS init table at offset 0x%04X\n",
6726 bios->some_script_ptr);
6727 parse_init_table(bios, bios->some_script_ptr, &iexec);
6728 }
6729
6730 if (dev_priv->card_type >= NV_50) {
7f245b20 6731 for (i = 0; i < bios->dcb.entries; i++) {
6ee73861 6732 nouveau_bios_run_display_table(dev,
7f245b20 6733 &bios->dcb.entry[i],
6ee73861
BS		 6734 0, 0);
6735 }
6736 }
6737
6ee73861
BS		 6738 return ret;
6739}
6740
6741static void
6742nouveau_bios_i2c_devices_takedown(struct drm_device *dev)
6743{
6744 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6745 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6746 struct dcb_i2c_entry *entry;
6747 int i;
6748
7f245b20 6749 entry = &bios->dcb.i2c[0];
6ee73861
BS		 6750 for (i = 0; i < DCB_MAX_NUM_I2C_ENTRIES; i++, entry++)
6751 nouveau_i2c_fini(dev, entry);
6752}
6753
d13102c6
BS		 6754static bool
6755nouveau_bios_posted(struct drm_device *dev)
6756{
6757 struct drm_nouveau_private *dev_priv = dev->dev_private;
d13102c6
BS		 6758 unsigned htotal;
6759
6760 if (dev_priv->chipset >= NV_50) {
6761 if (NVReadVgaCrtc(dev, 0, 0x00) == 0 &&
6762 NVReadVgaCrtc(dev, 0, 0x1a) == 0)
6763 return false;
6764 return true;
6765 }
6766
d13102c6
BS		 6767 htotal = NVReadVgaCrtc(dev, 0, 0x06);
6768 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x01) << 8;
6769 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x20) << 4;
6770 htotal |= (NVReadVgaCrtc(dev, 0, 0x25) & 0x01) << 10;
6771 htotal |= (NVReadVgaCrtc(dev, 0, 0x41) & 0x01) << 11;
03cd06ca 6772
d13102c6
BS		 6773 return (htotal != 0);
6774}
6775
6ee73861
BS		 6776int
6777nouveau_bios_init(struct drm_device *dev)
6778{
6779 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6780 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6781 int ret;
6782
6ee73861
BS		 6783 if (!NVInitVBIOS(dev))
6784 return -ENODEV;
6785
6786 ret = nouveau_parse_vbios_struct(dev);
6787 if (ret)
6788 return ret;
6789
6790 ret = parse_dcb_table(dev, bios, nv_two_heads(dev));
6791 if (ret)
6792 return ret;
6793
6794 fixup_legacy_i2c(bios);
6795 fixup_legacy_connector(bios);
6796
6797 if (!bios->major_version) /* we don't run version 0 bios */
6798 return 0;
6799
6ee73861
BS		 6800 /* init script execution disabled */
6801 bios->execute = false;
6802
6803 /* ... unless card isn't POSTed already */
d13102c6 6804 if (!nouveau_bios_posted(dev)) {
67eda20e
FJ		 6805 NV_INFO(dev, "Adaptor not initialised, "
6806 "running VBIOS init tables.\n");
6ee73861
BS		 6807 bios->execute = true;
6808 }
6809
6ee73861 6810 ret = nouveau_run_vbios_init(dev);
04a39c57 6811 if (ret)
6ee73861 6812 return ret;
6ee73861
BS		 6813
6814 /* feature_byte on BMP is poor, but init always sets CR4B */
6ee73861
BS		 6815 if (bios->major_version < 5)
6816 bios->is_mobile = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_4B) & 0x40;
6817
6818 /* all BIT systems need p_f_m_t for digital_min_front_porch */
6819 if (bios->is_mobile || bios->major_version >= 5)
6820 ret = parse_fp_mode_table(dev, bios);
6ee73861
BS		 6821
6822 /* allow subsequent scripts to execute */
6823 bios->execute = true;
6824
6825 return 0;
6826}
6827
6828void
6829nouveau_bios_takedown(struct drm_device *dev)
6830{
6831 nouveau_bios_i2c_devices_takedown(dev);
6832}
Clone of davem's net-next-2.6 tree