2 * Copyright 2005-2006 Erik Waling
3 * Copyright 2006 Stephane Marchesin
4 * Copyright 2007-2009 Stuart Bennett
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
25 #include <subdev/bios.h>
29 #include "nouveau_drm.h"
30 #include "nouveau_reg.h"
31 #include "nouveau_hw.h"
32 #include "nouveau_encoder.h"
34 #include <linux/io-mapping.h>
35 #include <linux/firmware.h>
37 /* these defines are made up */
38 #define NV_CIO_CRE_44_HEADA 0x0
39 #define NV_CIO_CRE_44_HEADB 0x3
40 #define FEATURE_MOBILE 0x10 /* also FEATURE_QUADRO for BMP */
44 #define BIOSLOG(sip, fmt, arg...) NV_DEBUG(sip->dev, fmt, ##arg)
45 #define LOG_OLD_VALUE(x)
52 static bool nv_cksum(const uint8_t *data, unsigned int length)
55 * There's a few checksums in the BIOS, so here's a generic checking
61 for (i = 0; i < length; i++)
70 static uint16_t clkcmptable(struct nvbios *bios, uint16_t clktable, int pxclk)
72 int compare_record_len, i = 0;
73 uint16_t compareclk, scriptptr = 0;
75 if (bios->major_version < 5) /* pre BIT */
76 compare_record_len = 3;
78 compare_record_len = 4;
81 compareclk = ROM16(bios->data[clktable + compare_record_len * i]);
82 if (pxclk >= compareclk * 10) {
83 if (bios->major_version < 5) {
84 uint8_t tmdssub = bios->data[clktable + 2 + compare_record_len * i];
85 scriptptr = ROM16(bios->data[bios->init_script_tbls_ptr + tmdssub * 2]);
87 scriptptr = ROM16(bios->data[clktable + 2 + compare_record_len * i]);
97 run_digital_op_script(struct drm_device *dev, uint16_t scriptptr,
98 struct dcb_output *dcbent, int head, bool dl)
100 struct nouveau_drm *drm = nouveau_drm(dev);
102 NV_INFO(drm, "0x%04X: Parsing digital output script table\n",
104 NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_44, head ? NV_CIO_CRE_44_HEADB :
105 NV_CIO_CRE_44_HEADA);
106 nouveau_bios_run_init_table(dev, scriptptr, dcbent, head);
108 nv04_dfp_bind_head(dev, dcbent, head, dl);
111 static int call_lvds_manufacturer_script(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script)
113 struct nouveau_drm *drm = nouveau_drm(dev);
114 struct nvbios *bios = &drm->vbios;
115 uint8_t sub = bios->data[bios->fp.xlated_entry + script] + (bios->fp.link_c_increment && dcbent->or & DCB_OUTPUT_C ? 1 : 0);
116 uint16_t scriptofs = ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]);
118 if (!bios->fp.xlated_entry || !sub || !scriptofs)
121 run_digital_op_script(dev, scriptofs, dcbent, head, bios->fp.dual_link);
123 if (script == LVDS_PANEL_OFF) {
124 /* off-on delay in ms */
125 mdelay(ROM16(bios->data[bios->fp.xlated_entry + 7]));
128 /* Powerbook specific quirks */
129 if (script == LVDS_RESET &&
130 (dev->pci_device == 0x0179 || dev->pci_device == 0x0189 ||
131 dev->pci_device == 0x0329))
132 nv_write_tmds(dev, dcbent->or, 0, 0x02, 0x72);
138 static int run_lvds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script, int pxclk)
141 * The BIT LVDS table's header has the information to setup the
142 * necessary registers. Following the standard 4 byte header are:
143 * A bitmask byte and a dual-link transition pxclk value for use in
144 * selecting the init script when not using straps; 4 script pointers
145 * for panel power, selected by output and on/off; and 8 table pointers
146 * for panel init, the needed one determined by output, and bits in the
147 * conf byte. These tables are similar to the TMDS tables, consisting
148 * of a list of pxclks and script pointers.
150 struct nouveau_drm *drm = nouveau_drm(dev);
151 struct nvbios *bios = &drm->vbios;
152 unsigned int outputset = (dcbent->or == 4) ? 1 : 0;
153 uint16_t scriptptr = 0, clktable;
156 * For now we assume version 3.0 table - g80 support will need some
163 case LVDS_BACKLIGHT_ON:
165 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 7 + outputset * 2]);
167 case LVDS_BACKLIGHT_OFF:
169 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 11 + outputset * 2]);
172 clktable = bios->fp.lvdsmanufacturerpointer + 15;
176 if (dcbent->lvdsconf.use_straps_for_mode) {
177 if (bios->fp.dual_link)
179 if (bios->fp.if_is_24bit)
183 int cmpval_24bit = (dcbent->or == 4) ? 4 : 1;
185 if (bios->fp.dual_link) {
190 if (bios->fp.strapless_is_24bit & cmpval_24bit)
194 clktable = ROM16(bios->data[clktable]);
196 NV_ERROR(drm, "Pixel clock comparison table not found\n");
199 scriptptr = clkcmptable(bios, clktable, pxclk);
203 NV_ERROR(drm, "LVDS output init script not found\n");
206 run_digital_op_script(dev, scriptptr, dcbent, head, bios->fp.dual_link);
211 int call_lvds_script(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script, int pxclk)
214 * LVDS operations are multiplexed in an effort to present a single API
215 * which works with two vastly differing underlying structures.
216 * This acts as the demux
219 struct nouveau_drm *drm = nouveau_drm(dev);
220 struct nouveau_device *device = nv_device(drm->device);
221 struct nvbios *bios = &drm->vbios;
222 uint8_t lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
223 uint32_t sel_clk_binding, sel_clk;
226 if (bios->fp.last_script_invoc == (script << 1 | head) || !lvds_ver ||
227 (lvds_ver >= 0x30 && script == LVDS_INIT))
230 if (!bios->fp.lvds_init_run) {
231 bios->fp.lvds_init_run = true;
232 call_lvds_script(dev, dcbent, head, LVDS_INIT, pxclk);
235 if (script == LVDS_PANEL_ON && bios->fp.reset_after_pclk_change)
236 call_lvds_script(dev, dcbent, head, LVDS_RESET, pxclk);
237 if (script == LVDS_RESET && bios->fp.power_off_for_reset)
238 call_lvds_script(dev, dcbent, head, LVDS_PANEL_OFF, pxclk);
240 NV_INFO(drm, "Calling LVDS script %d:\n", script);
242 /* don't let script change pll->head binding */
243 sel_clk_binding = nv_rd32(device, NV_PRAMDAC_SEL_CLK) & 0x50000;
246 ret = call_lvds_manufacturer_script(dev, dcbent, head, script);
248 ret = run_lvds_table(dev, dcbent, head, script, pxclk);
250 bios->fp.last_script_invoc = (script << 1 | head);
252 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000;
253 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
254 /* some scripts set a value in NV_PBUS_POWERCTRL_2 and break video overlay */
255 nv_wr32(device, NV_PBUS_POWERCTRL_2, 0);
260 struct lvdstableheader {
261 uint8_t lvds_ver, headerlen, recordlen;
264 static int parse_lvds_manufacturer_table_header(struct drm_device *dev, struct nvbios *bios, struct lvdstableheader *lth)
267 * BMP version (0xa) LVDS table has a simple header of version and
268 * record length. The BIT LVDS table has the typical BIT table header:
269 * version byte, header length byte, record length byte, and a byte for
270 * the maximum number of records that can be held in the table.
273 struct nouveau_drm *drm = nouveau_drm(dev);
274 uint8_t lvds_ver, headerlen, recordlen;
276 memset(lth, 0, sizeof(struct lvdstableheader));
278 if (bios->fp.lvdsmanufacturerpointer == 0x0) {
279 NV_ERROR(drm, "Pointer to LVDS manufacturer table invalid\n");
283 lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
286 case 0x0a: /* pre NV40 */
288 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
290 case 0x30: /* NV4x */
291 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
292 if (headerlen < 0x1f) {
293 NV_ERROR(drm, "LVDS table header not understood\n");
296 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2];
298 case 0x40: /* G80/G90 */
299 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
300 if (headerlen < 0x7) {
301 NV_ERROR(drm, "LVDS table header not understood\n");
304 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2];
308 "LVDS table revision %d.%d not currently supported\n",
309 lvds_ver >> 4, lvds_ver & 0xf);
313 lth->lvds_ver = lvds_ver;
314 lth->headerlen = headerlen;
315 lth->recordlen = recordlen;
321 get_fp_strap(struct drm_device *dev, struct nvbios *bios)
323 struct nouveau_device *device = nouveau_dev(dev);
326 * The fp strap is normally dictated by the "User Strap" in
327 * PEXTDEV_BOOT_0[20:16], but on BMP cards when bit 2 of the
328 * Internal_Flags struct at 0x48 is set, the user strap gets overriden
329 * by the PCI subsystem ID during POST, but not before the previous user
330 * strap has been committed to CR58 for CR57=0xf on head A, which may be
331 * read and used instead
334 if (bios->major_version < 5 && bios->data[0x48] & 0x4)
335 return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf;
337 if (device->card_type >= NV_50)
338 return (nv_rd32(device, NV_PEXTDEV_BOOT_0) >> 24) & 0xf;
340 return (nv_rd32(device, NV_PEXTDEV_BOOT_0) >> 16) & 0xf;
343 static int parse_fp_mode_table(struct drm_device *dev, struct nvbios *bios)
345 struct nouveau_drm *drm = nouveau_drm(dev);
347 uint8_t fptable_ver, headerlen = 0, recordlen, fpentries = 0xf, fpindex;
348 int ret, ofs, fpstrapping;
349 struct lvdstableheader lth;
351 if (bios->fp.fptablepointer == 0x0) {
352 /* Apple cards don't have the fp table; the laptops use DDC */
353 /* The table is also missing on some x86 IGPs */
355 NV_ERROR(drm, "Pointer to flat panel table invalid\n");
357 bios->digital_min_front_porch = 0x4b;
361 fptable = &bios->data[bios->fp.fptablepointer];
362 fptable_ver = fptable[0];
364 switch (fptable_ver) {
366 * BMP version 0x5.0x11 BIOSen have version 1 like tables, but no
367 * version field, and miss one of the spread spectrum/PWM bytes.
368 * This could affect early GF2Go parts (not seen any appropriate ROMs
369 * though). Here we assume that a version of 0x05 matches this case
370 * (combining with a BMP version check would be better), as the
371 * common case for the panel type field is 0x0005, and that is in
372 * fact what we are reading the first byte of.
374 case 0x05: /* some NV10, 11, 15, 16 */
378 case 0x10: /* some NV15/16, and NV11+ */
382 case 0x20: /* NV40+ */
383 headerlen = fptable[1];
384 recordlen = fptable[2];
385 fpentries = fptable[3];
387 * fptable[4] is the minimum
388 * RAMDAC_FP_HCRTC -> RAMDAC_FP_HSYNC_START gap
390 bios->digital_min_front_porch = fptable[4];
395 "FP table revision %d.%d not currently supported\n",
396 fptable_ver >> 4, fptable_ver & 0xf);
400 if (!bios->is_mobile) /* !mobile only needs digital_min_front_porch */
403 ret = parse_lvds_manufacturer_table_header(dev, bios, <h);
407 if (lth.lvds_ver == 0x30 || lth.lvds_ver == 0x40) {
408 bios->fp.fpxlatetableptr = bios->fp.lvdsmanufacturerpointer +
410 bios->fp.xlatwidth = lth.recordlen;
412 if (bios->fp.fpxlatetableptr == 0x0) {
413 NV_ERROR(drm, "Pointer to flat panel xlat table invalid\n");
417 fpstrapping = get_fp_strap(dev, bios);
419 fpindex = bios->data[bios->fp.fpxlatetableptr +
420 fpstrapping * bios->fp.xlatwidth];
422 if (fpindex > fpentries) {
423 NV_ERROR(drm, "Bad flat panel table index\n");
427 /* nv4x cards need both a strap value and fpindex of 0xf to use DDC */
428 if (lth.lvds_ver > 0x10)
429 bios->fp_no_ddc = fpstrapping != 0xf || fpindex != 0xf;
432 * If either the strap or xlated fpindex value are 0xf there is no
433 * panel using a strap-derived bios mode present. this condition
434 * includes, but is different from, the DDC panel indicator above
436 if (fpstrapping == 0xf || fpindex == 0xf)
439 bios->fp.mode_ptr = bios->fp.fptablepointer + headerlen +
440 recordlen * fpindex + ofs;
442 NV_INFO(drm, "BIOS FP mode: %dx%d (%dkHz pixel clock)\n",
443 ROM16(bios->data[bios->fp.mode_ptr + 11]) + 1,
444 ROM16(bios->data[bios->fp.mode_ptr + 25]) + 1,
445 ROM16(bios->data[bios->fp.mode_ptr + 7]) * 10);
450 bool nouveau_bios_fp_mode(struct drm_device *dev, struct drm_display_mode *mode)
452 struct nouveau_drm *drm = nouveau_drm(dev);
453 struct nvbios *bios = &drm->vbios;
454 uint8_t *mode_entry = &bios->data[bios->fp.mode_ptr];
456 if (!mode) /* just checking whether we can produce a mode */
457 return bios->fp.mode_ptr;
459 memset(mode, 0, sizeof(struct drm_display_mode));
461 * For version 1.0 (version in byte 0):
462 * bytes 1-2 are "panel type", including bits on whether Colour/mono,
463 * single/dual link, and type (TFT etc.)
464 * bytes 3-6 are bits per colour in RGBX
466 mode->clock = ROM16(mode_entry[7]) * 10;
467 /* bytes 9-10 is HActive */
468 mode->hdisplay = ROM16(mode_entry[11]) + 1;
470 * bytes 13-14 is HValid Start
471 * bytes 15-16 is HValid End
473 mode->hsync_start = ROM16(mode_entry[17]) + 1;
474 mode->hsync_end = ROM16(mode_entry[19]) + 1;
475 mode->htotal = ROM16(mode_entry[21]) + 1;
476 /* bytes 23-24, 27-30 similarly, but vertical */
477 mode->vdisplay = ROM16(mode_entry[25]) + 1;
478 mode->vsync_start = ROM16(mode_entry[31]) + 1;
479 mode->vsync_end = ROM16(mode_entry[33]) + 1;
480 mode->vtotal = ROM16(mode_entry[35]) + 1;
481 mode->flags |= (mode_entry[37] & 0x10) ?
482 DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
483 mode->flags |= (mode_entry[37] & 0x1) ?
484 DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
486 * bytes 38-39 relate to spread spectrum settings
487 * bytes 40-43 are something to do with PWM
490 mode->status = MODE_OK;
491 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
492 drm_mode_set_name(mode);
493 return bios->fp.mode_ptr;
496 int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, bool *if_is_24bit)
499 * The LVDS table header is (mostly) described in
500 * parse_lvds_manufacturer_table_header(): the BIT header additionally
501 * contains the dual-link transition pxclk (in 10s kHz), at byte 5 - if
502 * straps are not being used for the panel, this specifies the frequency
503 * at which modes should be set up in the dual link style.
505 * Following the header, the BMP (ver 0xa) table has several records,
506 * indexed by a separate xlat table, indexed in turn by the fp strap in
507 * EXTDEV_BOOT. Each record had a config byte, followed by 6 script
508 * numbers for use by INIT_SUB which controlled panel init and power,
509 * and finally a dword of ms to sleep between power off and on
512 * In the BIT versions, the table following the header serves as an
513 * integrated config and xlat table: the records in the table are
514 * indexed by the FP strap nibble in EXTDEV_BOOT, and each record has
515 * two bytes - the first as a config byte, the second for indexing the
516 * fp mode table pointed to by the BIT 'D' table
518 * DDC is not used until after card init, so selecting the correct table
519 * entry and setting the dual link flag for EDID equipped panels,
520 * requiring tests against the native-mode pixel clock, cannot be done
521 * until later, when this function should be called with non-zero pxclk
523 struct nouveau_drm *drm = nouveau_drm(dev);
524 struct nvbios *bios = &drm->vbios;
525 int fpstrapping = get_fp_strap(dev, bios), lvdsmanufacturerindex = 0;
526 struct lvdstableheader lth;
528 int ret, chip_version = bios->chip_version;
530 ret = parse_lvds_manufacturer_table_header(dev, bios, <h);
534 switch (lth.lvds_ver) {
535 case 0x0a: /* pre NV40 */
536 lvdsmanufacturerindex = bios->data[
537 bios->fp.fpxlatemanufacturertableptr +
540 /* we're done if this isn't the EDID panel case */
544 if (chip_version < 0x25) {
547 * It seems the old style lvds script pointer is reused
548 * to select 18/24 bit colour depth for EDID panels.
550 lvdsmanufacturerindex =
551 (bios->legacy.lvds_single_a_script_ptr & 1) ?
553 if (pxclk >= bios->fp.duallink_transition_clk)
554 lvdsmanufacturerindex++;
555 } else if (chip_version < 0x30) {
556 /* nv28 behaviour (off-chip encoder)
558 * nv28 does a complex dance of first using byte 121 of
559 * the EDID to choose the lvdsmanufacturerindex, then
560 * later attempting to match the EDID manufacturer and
561 * product IDs in a table (signature 'pidt' (panel id
562 * table?)), setting an lvdsmanufacturerindex of 0 and
563 * an fp strap of the match index (or 0xf if none)
565 lvdsmanufacturerindex = 0;
567 /* nv31, nv34 behaviour */
568 lvdsmanufacturerindex = 0;
569 if (pxclk >= bios->fp.duallink_transition_clk)
570 lvdsmanufacturerindex = 2;
572 lvdsmanufacturerindex = 3;
576 * nvidia set the high nibble of (cr57=f, cr58) to
577 * lvdsmanufacturerindex in this case; we don't
580 case 0x30: /* NV4x */
581 case 0x40: /* G80/G90 */
582 lvdsmanufacturerindex = fpstrapping;
585 NV_ERROR(drm, "LVDS table revision not currently supported\n");
589 lvdsofs = bios->fp.xlated_entry = bios->fp.lvdsmanufacturerpointer + lth.headerlen + lth.recordlen * lvdsmanufacturerindex;
590 switch (lth.lvds_ver) {
592 bios->fp.power_off_for_reset = bios->data[lvdsofs] & 1;
593 bios->fp.reset_after_pclk_change = bios->data[lvdsofs] & 2;
594 bios->fp.dual_link = bios->data[lvdsofs] & 4;
595 bios->fp.link_c_increment = bios->data[lvdsofs] & 8;
596 *if_is_24bit = bios->data[lvdsofs] & 16;
601 * No sign of the "power off for reset" or "reset for panel
602 * on" bits, but it's safer to assume we should
604 bios->fp.power_off_for_reset = true;
605 bios->fp.reset_after_pclk_change = true;
608 * It's ok lvdsofs is wrong for nv4x edid case; dual_link is
609 * over-written, and if_is_24bit isn't used
611 bios->fp.dual_link = bios->data[lvdsofs] & 1;
612 bios->fp.if_is_24bit = bios->data[lvdsofs] & 2;
613 bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4];
614 bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10;
618 /* set dual_link flag for EDID case */
619 if (pxclk && (chip_version < 0x25 || chip_version > 0x28))
620 bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk);
622 *dl = bios->fp.dual_link;
627 /* BIT 'U'/'d' table encoder subtables have hashes matching them to
628 * a particular set of encoders.
630 * This function returns true if a particular DCB entry matches.
633 bios_encoder_match(struct dcb_output *dcb, u32 hash)
635 if ((hash & 0x000000f0) != (dcb->location << 4))
637 if ((hash & 0x0000000f) != dcb->type)
639 if (!(hash & (dcb->or << 16)))
643 case DCB_OUTPUT_TMDS:
644 case DCB_OUTPUT_LVDS:
646 if (hash & 0x00c00000) {
647 if (!(hash & (dcb->sorconf.link << 22)))
656 nouveau_bios_run_display_table(struct drm_device *dev, u16 type, int pclk,
657 struct dcb_output *dcbent, int crtc)
660 * The display script table is located by the BIT 'U' table.
662 * It contains an array of pointers to various tables describing
663 * a particular output type. The first 32-bits of the output
664 * tables contains similar information to a DCB entry, and is
665 * used to decide whether that particular table is suitable for
666 * the output you want to access.
668 * The "record header length" field here seems to indicate the
669 * offset of the first configuration entry in the output tables.
670 * This is 10 on most cards I've seen, but 12 has been witnessed
671 * on DP cards, and there's another script pointer within the
674 * offset + 0 ( 8 bits): version
675 * offset + 1 ( 8 bits): header length
676 * offset + 2 ( 8 bits): record length
677 * offset + 3 ( 8 bits): number of records
678 * offset + 4 ( 8 bits): record header length
679 * offset + 5 (16 bits): pointer to first output script table
682 struct nouveau_drm *drm = nouveau_drm(dev);
683 struct nvbios *bios = &drm->vbios;
684 uint8_t *table = &bios->data[bios->display.script_table_ptr];
685 uint8_t *otable = NULL;
689 if (!bios->display.script_table_ptr) {
690 NV_ERROR(drm, "No pointer to output script table\n");
695 * Nothing useful has been in any of the pre-2.0 tables I've seen,
696 * so until they are, we really don't need to care.
701 if (table[0] != 0x20 && table[0] != 0x21) {
702 NV_ERROR(drm, "Output script table version 0x%02x unknown\n",
708 * The output script tables describing a particular output type
711 * offset + 0 (32 bits): output this table matches (hash of DCB)
712 * offset + 4 ( 8 bits): unknown
713 * offset + 5 ( 8 bits): number of configurations
714 * offset + 6 (16 bits): pointer to some script
715 * offset + 8 (16 bits): pointer to some script
718 * offset + 10 : configuration 0
721 * offset + 10 : pointer to some script
722 * offset + 12 : configuration 0
724 * Each config entry is as follows:
726 * offset + 0 (16 bits): unknown, assumed to be a match value
727 * offset + 2 (16 bits): pointer to script table (clock set?)
728 * offset + 4 (16 bits): pointer to script table (reset?)
730 * There doesn't appear to be a count value to say how many
731 * entries exist in each script table, instead, a 0 value in
732 * the first 16-bit word seems to indicate both the end of the
733 * list and the default entry. The second 16-bit word in the
734 * script tables is a pointer to the script to execute.
737 NV_DEBUG(drm, "Searching for output entry for %d %d %d\n",
738 dcbent->type, dcbent->location, dcbent->or);
739 for (i = 0; i < table[3]; i++) {
740 otable = ROMPTR(dev, table[table[1] + (i * table[2])]);
741 if (otable && bios_encoder_match(dcbent, ROM32(otable[0])))
746 NV_DEBUG(drm, "failed to match any output table\n");
750 if (pclk < -2 || pclk > 0) {
751 /* Try to find matching script table entry */
752 for (i = 0; i < otable[5]; i++) {
753 if (ROM16(otable[table[4] + i*6]) == type)
757 if (i == otable[5]) {
758 NV_ERROR(drm, "Table 0x%04x not found for %d/%d, "
760 type, dcbent->type, dcbent->or);
766 script = ROM16(otable[6]);
768 NV_DEBUG(drm, "output script 0 not found\n");
772 NV_DEBUG(drm, "0x%04X: parsing output script 0\n", script);
773 nouveau_bios_run_init_table(dev, script, dcbent, crtc);
776 script = ROM16(otable[8]);
778 NV_DEBUG(drm, "output script 1 not found\n");
782 NV_DEBUG(drm, "0x%04X: parsing output script 1\n", script);
783 nouveau_bios_run_init_table(dev, script, dcbent, crtc);
787 script = ROM16(otable[10]);
791 NV_DEBUG(drm, "output script 2 not found\n");
795 NV_DEBUG(drm, "0x%04X: parsing output script 2\n", script);
796 nouveau_bios_run_init_table(dev, script, dcbent, crtc);
799 script = ROM16(otable[table[4] + i*6 + 2]);
801 script = clkcmptable(bios, script, pclk);
803 NV_DEBUG(drm, "clock script 0 not found\n");
807 NV_DEBUG(drm, "0x%04X: parsing clock script 0\n", script);
808 nouveau_bios_run_init_table(dev, script, dcbent, crtc);
811 script = ROM16(otable[table[4] + i*6 + 4]);
813 script = clkcmptable(bios, script, -pclk);
815 NV_DEBUG(drm, "clock script 1 not found\n");
819 NV_DEBUG(drm, "0x%04X: parsing clock script 1\n", script);
820 nouveau_bios_run_init_table(dev, script, dcbent, crtc);
827 int run_tmds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, int pxclk)
830 * the pxclk parameter is in kHz
832 * This runs the TMDS regs setting code found on BIT bios cards
834 * For ffs(or) == 1 use the first table, for ffs(or) == 2 and
835 * ffs(or) == 3, use the second.
838 struct nouveau_drm *drm = nouveau_drm(dev);
839 struct nouveau_device *device = nv_device(drm->device);
840 struct nvbios *bios = &drm->vbios;
841 int cv = bios->chip_version;
842 uint16_t clktable = 0, scriptptr;
843 uint32_t sel_clk_binding, sel_clk;
845 /* pre-nv17 off-chip tmds uses scripts, post nv17 doesn't */
846 if (cv >= 0x17 && cv != 0x1a && cv != 0x20 &&
847 dcbent->location != DCB_LOC_ON_CHIP)
850 switch (ffs(dcbent->or)) {
852 clktable = bios->tmds.output0_script_ptr;
856 clktable = bios->tmds.output1_script_ptr;
861 NV_ERROR(drm, "Pixel clock comparison table not found\n");
865 scriptptr = clkcmptable(bios, clktable, pxclk);
868 NV_ERROR(drm, "TMDS output init script not found\n");
872 /* don't let script change pll->head binding */
873 sel_clk_binding = nv_rd32(device, NV_PRAMDAC_SEL_CLK) & 0x50000;
874 run_digital_op_script(dev, scriptptr, dcbent, head, pxclk >= 165000);
875 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000;
876 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
881 static void parse_bios_version(struct drm_device *dev, struct nvbios *bios, uint16_t offset)
884 * offset + 0 (8 bits): Micro version
885 * offset + 1 (8 bits): Minor version
886 * offset + 2 (8 bits): Chip version
887 * offset + 3 (8 bits): Major version
889 struct nouveau_drm *drm = nouveau_drm(dev);
891 bios->major_version = bios->data[offset + 3];
892 bios->chip_version = bios->data[offset + 2];
893 NV_INFO(drm, "Bios version %02x.%02x.%02x.%02x\n",
894 bios->data[offset + 3], bios->data[offset + 2],
895 bios->data[offset + 1], bios->data[offset]);
898 static void parse_script_table_pointers(struct nvbios *bios, uint16_t offset)
901 * Parses the init table segment for pointers used in script execution.
903 * offset + 0 (16 bits): init script tables pointer
904 * offset + 2 (16 bits): macro index table pointer
905 * offset + 4 (16 bits): macro table pointer
906 * offset + 6 (16 bits): condition table pointer
907 * offset + 8 (16 bits): io condition table pointer
908 * offset + 10 (16 bits): io flag condition table pointer
909 * offset + 12 (16 bits): init function table pointer
912 bios->init_script_tbls_ptr = ROM16(bios->data[offset]);
913 bios->macro_index_tbl_ptr = ROM16(bios->data[offset + 2]);
914 bios->macro_tbl_ptr = ROM16(bios->data[offset + 4]);
915 bios->condition_tbl_ptr = ROM16(bios->data[offset + 6]);
916 bios->io_condition_tbl_ptr = ROM16(bios->data[offset + 8]);
917 bios->io_flag_condition_tbl_ptr = ROM16(bios->data[offset + 10]);
918 bios->init_function_tbl_ptr = ROM16(bios->data[offset + 12]);
921 static int parse_bit_A_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
924 * Parses the load detect values for g80 cards.
926 * offset + 0 (16 bits): loadval table pointer
929 struct nouveau_drm *drm = nouveau_drm(dev);
930 uint16_t load_table_ptr;
931 uint8_t version, headerlen, entrylen, num_entries;
933 if (bitentry->length != 3) {
934 NV_ERROR(drm, "Do not understand BIT A table\n");
938 load_table_ptr = ROM16(bios->data[bitentry->offset]);
940 if (load_table_ptr == 0x0) {
941 NV_DEBUG(drm, "Pointer to BIT loadval table invalid\n");
945 version = bios->data[load_table_ptr];
947 if (version != 0x10) {
948 NV_ERROR(drm, "BIT loadval table version %d.%d not supported\n",
949 version >> 4, version & 0xF);
953 headerlen = bios->data[load_table_ptr + 1];
954 entrylen = bios->data[load_table_ptr + 2];
955 num_entries = bios->data[load_table_ptr + 3];
957 if (headerlen != 4 || entrylen != 4 || num_entries != 2) {
958 NV_ERROR(drm, "Do not understand BIT loadval table\n");
962 /* First entry is normal dac, 2nd tv-out perhaps? */
963 bios->dactestval = ROM32(bios->data[load_table_ptr + headerlen]) & 0x3ff;
968 static int parse_bit_C_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
971 * offset + 8 (16 bits): PLL limits table pointer
973 * There's more in here, but that's unknown.
975 struct nouveau_drm *drm = nouveau_drm(dev);
977 if (bitentry->length < 10) {
978 NV_ERROR(drm, "Do not understand BIT C table\n");
982 bios->pll_limit_tbl_ptr = ROM16(bios->data[bitentry->offset + 8]);
987 static int parse_bit_display_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
990 * Parses the flat panel table segment that the bit entry points to.
991 * Starting at bitentry->offset:
993 * offset + 0 (16 bits): ??? table pointer - seems to have 18 byte
994 * records beginning with a freq.
995 * offset + 2 (16 bits): mode table pointer
997 struct nouveau_drm *drm = nouveau_drm(dev);
999 if (bitentry->length != 4) {
1000 NV_ERROR(drm, "Do not understand BIT display table\n");
1004 bios->fp.fptablepointer = ROM16(bios->data[bitentry->offset + 2]);
1009 static int parse_bit_init_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
1012 * Parses the init table segment that the bit entry points to.
1014 * See parse_script_table_pointers for layout
1016 struct nouveau_drm *drm = nouveau_drm(dev);
1018 if (bitentry->length < 14) {
1019 NV_ERROR(drm, "Do not understand init table\n");
1023 parse_script_table_pointers(bios, bitentry->offset);
1025 if (bitentry->length >= 16)
1026 bios->some_script_ptr = ROM16(bios->data[bitentry->offset + 14]);
1027 if (bitentry->length >= 18)
1028 bios->init96_tbl_ptr = ROM16(bios->data[bitentry->offset + 16]);
1033 static int parse_bit_i_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
1036 * BIT 'i' (info?) table
1038 * offset + 0 (32 bits): BIOS version dword (as in B table)
1039 * offset + 5 (8 bits): BIOS feature byte (same as for BMP?)
1040 * offset + 13 (16 bits): pointer to table containing DAC load
1041 * detection comparison values
1043 * There's other things in the table, purpose unknown
1046 struct nouveau_drm *drm = nouveau_drm(dev);
1047 uint16_t daccmpoffset;
1048 uint8_t dacver, dacheaderlen;
1050 if (bitentry->length < 6) {
1051 NV_ERROR(drm, "BIT i table too short for needed information\n");
1055 parse_bios_version(dev, bios, bitentry->offset);
1058 * bit 4 seems to indicate a mobile bios (doesn't suffer from BMP's
1059 * Quadro identity crisis), other bits possibly as for BMP feature byte
1061 bios->feature_byte = bios->data[bitentry->offset + 5];
1062 bios->is_mobile = bios->feature_byte & FEATURE_MOBILE;
1064 if (bitentry->length < 15) {
1065 NV_WARN(drm, "BIT i table not long enough for DAC load "
1066 "detection comparison table\n");
1070 daccmpoffset = ROM16(bios->data[bitentry->offset + 13]);
1072 /* doesn't exist on g80 */
1077 * The first value in the table, following the header, is the
1078 * comparison value, the second entry is a comparison value for
1079 * TV load detection.
1082 dacver = bios->data[daccmpoffset];
1083 dacheaderlen = bios->data[daccmpoffset + 1];
1085 if (dacver != 0x00 && dacver != 0x10) {
1086 NV_WARN(drm, "DAC load detection comparison table version "
1087 "%d.%d not known\n", dacver >> 4, dacver & 0xf);
1091 bios->dactestval = ROM32(bios->data[daccmpoffset + dacheaderlen]);
1092 bios->tvdactestval = ROM32(bios->data[daccmpoffset + dacheaderlen + 4]);
1097 static int parse_bit_lvds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
1100 * Parses the LVDS table segment that the bit entry points to.
1101 * Starting at bitentry->offset:
1103 * offset + 0 (16 bits): LVDS strap xlate table pointer
1106 struct nouveau_drm *drm = nouveau_drm(dev);
1108 if (bitentry->length != 2) {
1109 NV_ERROR(drm, "Do not understand BIT LVDS table\n");
1114 * No idea if it's still called the LVDS manufacturer table, but
1115 * the concept's close enough.
1117 bios->fp.lvdsmanufacturerpointer = ROM16(bios->data[bitentry->offset]);
1123 parse_bit_M_tbl_entry(struct drm_device *dev, struct nvbios *bios,
1124 struct bit_entry *bitentry)
1127 * offset + 2 (8 bits): number of options in an
1128 * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode option set
1129 * offset + 3 (16 bits): pointer to strap xlate table for RAM
1130 * restrict option selection
1132 * There's a bunch of bits in this table other than the RAM restrict
1133 * stuff that we don't use - their use currently unknown
1137 * Older bios versions don't have a sufficiently long table for
1140 if (bitentry->length < 0x5)
1143 if (bitentry->version < 2) {
1144 bios->ram_restrict_group_count = bios->data[bitentry->offset + 2];
1145 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 3]);
1147 bios->ram_restrict_group_count = bios->data[bitentry->offset + 0];
1148 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 1]);
1154 static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
1157 * Parses the pointer to the TMDS table
1159 * Starting at bitentry->offset:
1161 * offset + 0 (16 bits): TMDS table pointer
1163 * The TMDS table is typically found just before the DCB table, with a
1164 * characteristic signature of 0x11,0x13 (1.1 being version, 0x13 being
1167 * At offset +7 is a pointer to a script, which I don't know how to
1169 * At offset +9 is a pointer to another script, likewise
1170 * Offset +11 has a pointer to a table where the first word is a pxclk
1171 * frequency and the second word a pointer to a script, which should be
1172 * run if the comparison pxclk frequency is less than the pxclk desired.
1173 * This repeats for decreasing comparison frequencies
1174 * Offset +13 has a pointer to a similar table
1175 * The selection of table (and possibly +7/+9 script) is dictated by
1176 * "or" from the DCB.
1179 struct nouveau_drm *drm = nouveau_drm(dev);
1180 uint16_t tmdstableptr, script1, script2;
1182 if (bitentry->length != 2) {
1183 NV_ERROR(drm, "Do not understand BIT TMDS table\n");
1187 tmdstableptr = ROM16(bios->data[bitentry->offset]);
1188 if (!tmdstableptr) {
1189 NV_ERROR(drm, "Pointer to TMDS table invalid\n");
1193 NV_INFO(drm, "TMDS table version %d.%d\n",
1194 bios->data[tmdstableptr] >> 4, bios->data[tmdstableptr] & 0xf);
1196 /* nv50+ has v2.0, but we don't parse it atm */
1197 if (bios->data[tmdstableptr] != 0x11)
1201 * These two scripts are odd: they don't seem to get run even when
1202 * they are not stubbed.
1204 script1 = ROM16(bios->data[tmdstableptr + 7]);
1205 script2 = ROM16(bios->data[tmdstableptr + 9]);
1206 if (bios->data[script1] != 'q' || bios->data[script2] != 'q')
1207 NV_WARN(drm, "TMDS table script pointers not stubbed\n");
1209 bios->tmds.output0_script_ptr = ROM16(bios->data[tmdstableptr + 11]);
1210 bios->tmds.output1_script_ptr = ROM16(bios->data[tmdstableptr + 13]);
1216 parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios,
1217 struct bit_entry *bitentry)
1220 * Parses the pointer to the G80 output script tables
1222 * Starting at bitentry->offset:
1224 * offset + 0 (16 bits): output script table pointer
1227 struct nouveau_drm *drm = nouveau_drm(dev);
1228 uint16_t outputscripttableptr;
1230 if (bitentry->length != 3) {
1231 NV_ERROR(drm, "Do not understand BIT U table\n");
1235 outputscripttableptr = ROM16(bios->data[bitentry->offset]);
1236 bios->display.script_table_ptr = outputscripttableptr;
1242 int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
1245 #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
1248 bit_table(struct drm_device *dev, u8 id, struct bit_entry *bit)
1250 struct nouveau_drm *drm = nouveau_drm(dev);
1251 struct nvbios *bios = &drm->vbios;
1254 if (bios->type != NVBIOS_BIT)
1257 entries = bios->data[bios->offset + 10];
1258 entry = &bios->data[bios->offset + 12];
1260 if (entry[0] == id) {
1262 bit->version = entry[1];
1263 bit->length = ROM16(entry[2]);
1264 bit->offset = ROM16(entry[4]);
1265 bit->data = ROMPTR(dev, entry[4]);
1269 entry += bios->data[bios->offset + 9];
1276 parse_bit_table(struct nvbios *bios, const uint16_t bitoffset,
1277 struct bit_table *table)
1279 struct drm_device *dev = bios->dev;
1280 struct nouveau_drm *drm = nouveau_drm(dev);
1281 struct bit_entry bitentry;
1283 if (bit_table(dev, table->id, &bitentry) == 0)
1284 return table->parse_fn(dev, bios, &bitentry);
1286 NV_INFO(drm, "BIT table '%c' not found\n", table->id);
1291 parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset)
1296 * The only restriction on parsing order currently is having 'i' first
1297 * for use of bios->*_version or bios->feature_byte while parsing;
1298 * functions shouldn't be actually *doing* anything apart from pulling
1299 * data from the image into the bios struct, thus no interdependencies
1301 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('i', i));
1302 if (ret) /* info? */
1304 if (bios->major_version >= 0x60) /* g80+ */
1305 parse_bit_table(bios, bitoffset, &BIT_TABLE('A', A));
1306 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('C', C));
1309 parse_bit_table(bios, bitoffset, &BIT_TABLE('D', display));
1310 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('I', init));
1313 parse_bit_table(bios, bitoffset, &BIT_TABLE('M', M)); /* memory? */
1314 parse_bit_table(bios, bitoffset, &BIT_TABLE('L', lvds));
1315 parse_bit_table(bios, bitoffset, &BIT_TABLE('T', tmds));
1316 parse_bit_table(bios, bitoffset, &BIT_TABLE('U', U));
1321 static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsigned int offset)
1324 * Parses the BMP structure for useful things, but does not act on them
1326 * offset + 5: BMP major version
1327 * offset + 6: BMP minor version
1328 * offset + 9: BMP feature byte
1329 * offset + 10: BCD encoded BIOS version
1331 * offset + 18: init script table pointer (for bios versions < 5.10h)
1332 * offset + 20: extra init script table pointer (for bios
1335 * offset + 24: memory init table pointer (used on early bios versions)
1336 * offset + 26: SDR memory sequencing setup data table
1337 * offset + 28: DDR memory sequencing setup data table
1339 * offset + 54: index of I2C CRTC pair to use for CRT output
1340 * offset + 55: index of I2C CRTC pair to use for TV output
1341 * offset + 56: index of I2C CRTC pair to use for flat panel output
1342 * offset + 58: write CRTC index for I2C pair 0
1343 * offset + 59: read CRTC index for I2C pair 0
1344 * offset + 60: write CRTC index for I2C pair 1
1345 * offset + 61: read CRTC index for I2C pair 1
1347 * offset + 67: maximum internal PLL frequency (single stage PLL)
1348 * offset + 71: minimum internal PLL frequency (single stage PLL)
1350 * offset + 75: script table pointers, as described in
1351 * parse_script_table_pointers
1353 * offset + 89: TMDS single link output A table pointer
1354 * offset + 91: TMDS single link output B table pointer
1355 * offset + 95: LVDS single link output A table pointer
1356 * offset + 105: flat panel timings table pointer
1357 * offset + 107: flat panel strapping translation table pointer
1358 * offset + 117: LVDS manufacturer panel config table pointer
1359 * offset + 119: LVDS manufacturer strapping translation table pointer
1361 * offset + 142: PLL limits table pointer
1363 * offset + 156: minimum pixel clock for LVDS dual link
1366 struct nouveau_drm *drm = nouveau_drm(dev);
1367 uint8_t *bmp = &bios->data[offset], bmp_version_major, bmp_version_minor;
1369 uint16_t legacy_scripts_offset, legacy_i2c_offset;
1371 /* load needed defaults in case we can't parse this info */
1372 bios->digital_min_front_porch = 0x4b;
1373 bios->fmaxvco = 256000;
1374 bios->fminvco = 128000;
1375 bios->fp.duallink_transition_clk = 90000;
1377 bmp_version_major = bmp[5];
1378 bmp_version_minor = bmp[6];
1380 NV_INFO(drm, "BMP version %d.%d\n",
1381 bmp_version_major, bmp_version_minor);
1384 * Make sure that 0x36 is blank and can't be mistaken for a DCB
1385 * pointer on early versions
1387 if (bmp_version_major < 5)
1388 *(uint16_t *)&bios->data[0x36] = 0;
1391 * Seems that the minor version was 1 for all major versions prior
1392 * to 5. Version 6 could theoretically exist, but I suspect BIT
1395 if ((bmp_version_major < 5 && bmp_version_minor != 1) || bmp_version_major > 5) {
1396 NV_ERROR(drm, "You have an unsupported BMP version. "
1397 "Please send in your bios\n");
1401 if (bmp_version_major == 0)
1402 /* nothing that's currently useful in this version */
1404 else if (bmp_version_major == 1)
1405 bmplength = 44; /* exact for 1.01 */
1406 else if (bmp_version_major == 2)
1407 bmplength = 48; /* exact for 2.01 */
1408 else if (bmp_version_major == 3)
1410 /* guessed - mem init tables added in this version */
1411 else if (bmp_version_major == 4 || bmp_version_minor < 0x1)
1412 /* don't know if 5.0 exists... */
1414 /* guessed - BMP I2C indices added in version 4*/
1415 else if (bmp_version_minor < 0x6)
1416 bmplength = 67; /* exact for 5.01 */
1417 else if (bmp_version_minor < 0x10)
1418 bmplength = 75; /* exact for 5.06 */
1419 else if (bmp_version_minor == 0x10)
1420 bmplength = 89; /* exact for 5.10h */
1421 else if (bmp_version_minor < 0x14)
1422 bmplength = 118; /* exact for 5.11h */
1423 else if (bmp_version_minor < 0x24)
1425 * Not sure of version where pll limits came in;
1426 * certainly exist by 0x24 though.
1428 /* length not exact: this is long enough to get lvds members */
1430 else if (bmp_version_minor < 0x27)
1432 * Length not exact: this is long enough to get pll limit
1438 * Length not exact: this is long enough to get dual link
1444 if (nv_cksum(bmp, 8)) {
1445 NV_ERROR(drm, "Bad BMP checksum\n");
1450 * Bit 4 seems to indicate either a mobile bios or a quadro card --
1451 * mobile behaviour consistent (nv11+), quadro only seen nv18gl-nv36gl
1452 * (not nv10gl), bit 5 that the flat panel tables are present, and
1455 bios->feature_byte = bmp[9];
1457 parse_bios_version(dev, bios, offset + 10);
1459 if (bmp_version_major < 5 || bmp_version_minor < 0x10)
1460 bios->old_style_init = true;
1461 legacy_scripts_offset = 18;
1462 if (bmp_version_major < 2)
1463 legacy_scripts_offset -= 4;
1464 bios->init_script_tbls_ptr = ROM16(bmp[legacy_scripts_offset]);
1465 bios->extra_init_script_tbl_ptr = ROM16(bmp[legacy_scripts_offset + 2]);
1467 if (bmp_version_major > 2) { /* appears in BMP 3 */
1468 bios->legacy.mem_init_tbl_ptr = ROM16(bmp[24]);
1469 bios->legacy.sdr_seq_tbl_ptr = ROM16(bmp[26]);
1470 bios->legacy.ddr_seq_tbl_ptr = ROM16(bmp[28]);
1473 legacy_i2c_offset = 0x48; /* BMP version 2 & 3 */
1475 legacy_i2c_offset = offset + 54;
1476 bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset];
1477 bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1];
1478 bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2];
1480 if (bmplength > 74) {
1481 bios->fmaxvco = ROM32(bmp[67]);
1482 bios->fminvco = ROM32(bmp[71]);
1485 parse_script_table_pointers(bios, offset + 75);
1486 if (bmplength > 94) {
1487 bios->tmds.output0_script_ptr = ROM16(bmp[89]);
1488 bios->tmds.output1_script_ptr = ROM16(bmp[91]);
1490 * Never observed in use with lvds scripts, but is reused for
1491 * 18/24 bit panel interface default for EDID equipped panels
1492 * (if_is_24bit not set directly to avoid any oscillation).
1494 bios->legacy.lvds_single_a_script_ptr = ROM16(bmp[95]);
1496 if (bmplength > 108) {
1497 bios->fp.fptablepointer = ROM16(bmp[105]);
1498 bios->fp.fpxlatetableptr = ROM16(bmp[107]);
1499 bios->fp.xlatwidth = 1;
1501 if (bmplength > 120) {
1502 bios->fp.lvdsmanufacturerpointer = ROM16(bmp[117]);
1503 bios->fp.fpxlatemanufacturertableptr = ROM16(bmp[119]);
1505 if (bmplength > 143)
1506 bios->pll_limit_tbl_ptr = ROM16(bmp[142]);
1508 if (bmplength > 157)
1509 bios->fp.duallink_transition_clk = ROM16(bmp[156]) * 10;
1514 static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len)
1518 for (i = 0; i <= (n - len); i++) {
1519 for (j = 0; j < len; j++)
1520 if (data[i + j] != str[j])
1530 olddcb_table(struct drm_device *dev)
1532 struct nouveau_drm *drm = nouveau_drm(dev);
1535 if (nv_device(drm->device)->card_type > NV_04)
1536 dcb = ROMPTR(dev, drm->vbios.data[0x36]);
1538 NV_WARN(drm, "No DCB data found in VBIOS\n");
1542 if (dcb[0] >= 0x41) {
1543 NV_WARN(drm, "DCB version 0x%02x unknown\n", dcb[0]);
1546 if (dcb[0] >= 0x30) {
1547 if (ROM32(dcb[6]) == 0x4edcbdcb)
1550 if (dcb[0] >= 0x20) {
1551 if (ROM32(dcb[4]) == 0x4edcbdcb)
1554 if (dcb[0] >= 0x15) {
1555 if (!memcmp(&dcb[-7], "DEV_REC", 7))
1559 * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but
1560 * always has the same single (crt) entry, even when tv-out
1561 * present, so the conclusion is this version cannot really
1564 * v1.2 tables (some NV6/10, and NV15+) normally have the
1565 * same 5 entries, which are not specific to the card and so
1568 * v1.2 does have an I2C table that read_dcb_i2c_table can
1569 * handle, but cards exist (nv11 in #14821) with a bad i2c
1570 * table pointer, so use the indices parsed in
1571 * parse_bmp_structure.
1573 * v1.1 (NV5+, maybe some NV4) is entirely unhelpful
1575 NV_WARN(drm, "No useful DCB data in VBIOS\n");
1579 NV_WARN(drm, "DCB header validation failed\n");
1584 olddcb_outp(struct drm_device *dev, u8 idx)
1586 u8 *dcb = olddcb_table(dev);
1587 if (dcb && dcb[0] >= 0x30) {
1589 return dcb + dcb[1] + (idx * dcb[3]);
1591 if (dcb && dcb[0] >= 0x20) {
1592 u8 *i2c = ROMPTR(dev, dcb[2]);
1593 u8 *ent = dcb + 8 + (idx * 8);
1594 if (i2c && ent < i2c)
1597 if (dcb && dcb[0] >= 0x15) {
1598 u8 *i2c = ROMPTR(dev, dcb[2]);
1599 u8 *ent = dcb + 4 + (idx * 10);
1600 if (i2c && ent < i2c)
1608 olddcb_outp_foreach(struct drm_device *dev, void *data,
1609 int (*exec)(struct drm_device *, void *, int idx, u8 *outp))
1613 while ((outp = olddcb_outp(dev, ++idx))) {
1614 if (ROM32(outp[0]) == 0x00000000)
1615 break; /* seen on an NV11 with DCB v1.5 */
1616 if (ROM32(outp[0]) == 0xffffffff)
1617 break; /* seen on an NV17 with DCB v2.0 */
1619 if ((outp[0] & 0x0f) == DCB_OUTPUT_UNUSED)
1621 if ((outp[0] & 0x0f) == DCB_OUTPUT_EOL)
1624 ret = exec(dev, data, idx, outp);
1633 olddcb_conntab(struct drm_device *dev)
1635 u8 *dcb = olddcb_table(dev);
1636 if (dcb && dcb[0] >= 0x30 && dcb[1] >= 0x16) {
1637 u8 *conntab = ROMPTR(dev, dcb[0x14]);
1638 if (conntab && conntab[0] >= 0x30 && conntab[0] <= 0x40)
1645 olddcb_conn(struct drm_device *dev, u8 idx)
1647 u8 *conntab = olddcb_conntab(dev);
1648 if (conntab && idx < conntab[2])
1649 return conntab + conntab[1] + (idx * conntab[3]);
1653 static struct dcb_output *new_dcb_entry(struct dcb_table *dcb)
1655 struct dcb_output *entry = &dcb->entry[dcb->entries];
1657 memset(entry, 0, sizeof(struct dcb_output));
1658 entry->index = dcb->entries++;
1663 static void fabricate_dcb_output(struct dcb_table *dcb, int type, int i2c,
1666 struct dcb_output *entry = new_dcb_entry(dcb);
1669 entry->i2c_index = i2c;
1670 entry->heads = heads;
1671 if (type != DCB_OUTPUT_ANALOG)
1672 entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */
1677 parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb,
1678 uint32_t conn, uint32_t conf, struct dcb_output *entry)
1680 struct nouveau_drm *drm = nouveau_drm(dev);
1682 entry->type = conn & 0xf;
1683 entry->i2c_index = (conn >> 4) & 0xf;
1684 entry->heads = (conn >> 8) & 0xf;
1685 entry->connector = (conn >> 12) & 0xf;
1686 entry->bus = (conn >> 16) & 0xf;
1687 entry->location = (conn >> 20) & 0x3;
1688 entry->or = (conn >> 24) & 0xf;
1690 switch (entry->type) {
1691 case DCB_OUTPUT_ANALOG:
1693 * Although the rest of a CRT conf dword is usually
1694 * zeros, mac biosen have stuff there so we must mask
1696 entry->crtconf.maxfreq = (dcb->version < 0x30) ?
1697 (conf & 0xffff) * 10 :
1698 (conf & 0xff) * 10000;
1700 case DCB_OUTPUT_LVDS:
1704 entry->lvdsconf.use_straps_for_mode = true;
1705 if (dcb->version < 0x22) {
1708 * The laptop in bug 14567 lies and claims to not use
1709 * straps when it does, so assume all DCB 2.0 laptops
1710 * use straps, until a broken EDID using one is produced
1712 entry->lvdsconf.use_straps_for_mode = true;
1714 * Both 0x4 and 0x8 show up in v2.0 tables; assume they
1715 * mean the same thing (probably wrong, but might work)
1717 if (conf & 0x4 || conf & 0x8)
1718 entry->lvdsconf.use_power_scripts = true;
1722 entry->lvdsconf.use_acpi_for_edid = true;
1724 entry->lvdsconf.use_power_scripts = true;
1725 entry->lvdsconf.sor.link = (conf & 0x00000030) >> 4;
1729 * Until we even try to use these on G8x, it's
1730 * useless reporting unknown bits. They all are.
1732 if (dcb->version >= 0x40)
1735 NV_ERROR(drm, "Unknown LVDS configuration bits, "
1742 if (dcb->version >= 0x30)
1743 entry->tvconf.has_component_output = conf & (0x8 << 4);
1745 entry->tvconf.has_component_output = false;
1750 entry->dpconf.sor.link = (conf & 0x00000030) >> 4;
1751 switch ((conf & 0x00e00000) >> 21) {
1753 entry->dpconf.link_bw = 162000;
1756 entry->dpconf.link_bw = 270000;
1759 switch ((conf & 0x0f000000) >> 24) {
1761 entry->dpconf.link_nr = 4;
1764 entry->dpconf.link_nr = 2;
1767 entry->dpconf.link_nr = 1;
1771 case DCB_OUTPUT_TMDS:
1772 if (dcb->version >= 0x40)
1773 entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4;
1774 else if (dcb->version >= 0x30)
1775 entry->tmdsconf.slave_addr = (conf & 0x00000700) >> 8;
1776 else if (dcb->version >= 0x22)
1777 entry->tmdsconf.slave_addr = (conf & 0x00000070) >> 4;
1780 case DCB_OUTPUT_EOL:
1781 /* weird g80 mobile type that "nv" treats as a terminator */
1788 if (dcb->version < 0x40) {
1789 /* Normal entries consist of a single bit, but dual link has
1790 * the next most significant bit set too
1792 entry->duallink_possible =
1793 ((1 << (ffs(entry->or) - 1)) * 3 == entry->or);
1795 entry->duallink_possible = (entry->sorconf.link == 3);
1798 /* unsure what DCB version introduces this, 3.0? */
1799 if (conf & 0x100000)
1800 entry->i2c_upper_default = true;
1806 parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb,
1807 uint32_t conn, uint32_t conf, struct dcb_output *entry)
1809 struct nouveau_drm *drm = nouveau_drm(dev);
1811 switch (conn & 0x0000000f) {
1813 entry->type = DCB_OUTPUT_ANALOG;
1816 entry->type = DCB_OUTPUT_TV;
1821 entry->type = DCB_OUTPUT_LVDS;
1823 entry->type = DCB_OUTPUT_TMDS;
1826 entry->type = DCB_OUTPUT_LVDS;
1829 NV_ERROR(drm, "Unknown DCB type %d\n", conn & 0x0000000f);
1833 entry->i2c_index = (conn & 0x0003c000) >> 14;
1834 entry->heads = ((conn & 0x001c0000) >> 18) + 1;
1835 entry->or = entry->heads; /* same as heads, hopefully safe enough */
1836 entry->location = (conn & 0x01e00000) >> 21;
1837 entry->bus = (conn & 0x0e000000) >> 25;
1838 entry->duallink_possible = false;
1840 switch (entry->type) {
1841 case DCB_OUTPUT_ANALOG:
1842 entry->crtconf.maxfreq = (conf & 0xffff) * 10;
1845 entry->tvconf.has_component_output = false;
1847 case DCB_OUTPUT_LVDS:
1848 if ((conn & 0x00003f00) >> 8 != 0x10)
1849 entry->lvdsconf.use_straps_for_mode = true;
1850 entry->lvdsconf.use_power_scripts = true;
1860 void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb)
1863 * DCB v2.0 lists each output combination separately.
1864 * Here we merge compatible entries to have fewer outputs, with
1868 struct nouveau_drm *drm = nouveau_drm(dev);
1869 int i, newentries = 0;
1871 for (i = 0; i < dcb->entries; i++) {
1872 struct dcb_output *ient = &dcb->entry[i];
1875 for (j = i + 1; j < dcb->entries; j++) {
1876 struct dcb_output *jent = &dcb->entry[j];
1878 if (jent->type == 100) /* already merged entry */
1881 /* merge heads field when all other fields the same */
1882 if (jent->i2c_index == ient->i2c_index &&
1883 jent->type == ient->type &&
1884 jent->location == ient->location &&
1885 jent->or == ient->or) {
1886 NV_INFO(drm, "Merging DCB entries %d and %d\n",
1888 ient->heads |= jent->heads;
1889 jent->type = 100; /* dummy value */
1894 /* Compact entries merged into others out of dcb */
1895 for (i = 0; i < dcb->entries; i++) {
1896 if (dcb->entry[i].type == 100)
1899 if (newentries != i) {
1900 dcb->entry[newentries] = dcb->entry[i];
1901 dcb->entry[newentries].index = newentries;
1906 dcb->entries = newentries;
1910 apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf)
1912 struct nouveau_drm *drm = nouveau_drm(dev);
1913 struct dcb_table *dcb = &drm->vbios.dcb;
1915 /* Dell Precision M6300
1916 * DCB entry 2: 02025312 00000010
1917 * DCB entry 3: 02026312 00000020
1919 * Identical, except apparently a different connector on a
1920 * different SOR link. Not a clue how we're supposed to know
1921 * which one is in use if it even shares an i2c line...
1923 * Ignore the connector on the second SOR link to prevent
1924 * nasty problems until this is sorted (assuming it's not a
1927 if (nv_match_device(dev, 0x040d, 0x1028, 0x019b)) {
1928 if (*conn == 0x02026312 && *conf == 0x00000020)
1934 * DCB reports an LVDS output that should be TMDS:
1935 * DCB entry 1: f2005014 ffffffff
1937 if (nv_match_device(dev, 0x0201, 0x1462, 0x8851)) {
1938 if (*conn == 0xf2005014 && *conf == 0xffffffff) {
1939 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, 1, 1);
1946 * So many things wrong here, replace the entire encoder table..
1948 if (nv_match_device(dev, 0x0ca3, 0x1682, 0x3003)) {
1950 *conn = 0x02001300; /* VGA, connector 1 */
1954 *conn = 0x01010312; /* DVI, connector 0 */
1958 *conn = 0x01010310; /* VGA, connector 0 */
1962 *conn = 0x02022362; /* HDMI, connector 2 */
1965 *conn = 0x0000000e; /* EOL */
1970 /* Some other twisted XFX board (rhbz#694914)
1972 * The DVI/VGA encoder combo that's supposed to represent the
1973 * DVI-I connector actually point at two different ones, and
1974 * the HDMI connector ends up paired with the VGA instead.
1976 * Connector table is missing anything for VGA at all, pointing it
1977 * an invalid conntab entry 2 so we figure it out ourself.
1979 if (nv_match_device(dev, 0x0615, 0x1682, 0x2605)) {
1981 *conn = 0x02002300; /* VGA, connector 2 */
1985 *conn = 0x01010312; /* DVI, connector 0 */
1989 *conn = 0x04020310; /* VGA, connector 0 */
1993 *conn = 0x02021322; /* HDMI, connector 1 */
1996 *conn = 0x0000000e; /* EOL */
2001 /* fdo#50830: connector indices for VGA and DVI-I are backwards */
2002 if (nv_match_device(dev, 0x0421, 0x3842, 0xc793)) {
2003 if (idx == 0 && *conn == 0x02000300)
2006 if (idx == 1 && *conn == 0x04011310)
2009 if (idx == 2 && *conn == 0x02011312)
2017 fabricate_dcb_encoder_table(struct drm_device *dev, struct nvbios *bios)
2019 struct dcb_table *dcb = &bios->dcb;
2020 int all_heads = (nv_two_heads(dev) ? 3 : 1);
2023 /* Apple iMac G4 NV17 */
2024 if (of_machine_is_compatible("PowerMac4,5")) {
2025 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 0, all_heads, 1);
2026 fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG, 1, all_heads, 2);
2031 /* Make up some sane defaults */
2032 fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG,
2033 bios->legacy.i2c_indices.crt, 1, 1);
2035 if (nv04_tv_identify(dev, bios->legacy.i2c_indices.tv) >= 0)
2036 fabricate_dcb_output(dcb, DCB_OUTPUT_TV,
2037 bios->legacy.i2c_indices.tv,
2040 else if (bios->tmds.output0_script_ptr ||
2041 bios->tmds.output1_script_ptr)
2042 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS,
2043 bios->legacy.i2c_indices.panel,
2048 parse_dcb_entry(struct drm_device *dev, void *data, int idx, u8 *outp)
2050 struct nouveau_drm *drm = nouveau_drm(dev);
2051 struct dcb_table *dcb = &drm->vbios.dcb;
2052 u32 conf = (dcb->version >= 0x20) ? ROM32(outp[4]) : ROM32(outp[6]);
2053 u32 conn = ROM32(outp[0]);
2056 if (apply_dcb_encoder_quirks(dev, idx, &conn, &conf)) {
2057 struct dcb_output *entry = new_dcb_entry(dcb);
2059 NV_INFO(drm, "DCB outp %02d: %08x %08x\n", idx, conn, conf);
2061 if (dcb->version >= 0x20)
2062 ret = parse_dcb20_entry(dev, dcb, conn, conf, entry);
2064 ret = parse_dcb15_entry(dev, dcb, conn, conf, entry);
2066 return 1; /* stop parsing */
2068 /* Ignore the I2C index for on-chip TV-out, as there
2069 * are cards with bogus values (nv31m in bug 23212),
2070 * and it's otherwise useless.
2072 if (entry->type == DCB_OUTPUT_TV &&
2073 entry->location == DCB_LOC_ON_CHIP)
2074 entry->i2c_index = 0x0f;
2081 dcb_fake_connectors(struct nvbios *bios)
2083 struct dcb_table *dcbt = &bios->dcb;
2087 /* heuristic: if we ever get a non-zero connector field, assume
2088 * that all the indices are valid and we don't need fake them.
2090 * and, as usual, a blacklist of boards with bad bios data..
2092 if (!nv_match_device(bios->dev, 0x0392, 0x107d, 0x20a2)) {
2093 for (i = 0; i < dcbt->entries; i++) {
2094 if (dcbt->entry[i].connector)
2099 /* no useful connector info available, we need to make it up
2100 * ourselves. the rule here is: anything on the same i2c bus
2101 * is considered to be on the same connector. any output
2102 * without an associated i2c bus is assigned its own unique
2105 for (i = 0; i < dcbt->entries; i++) {
2106 u8 i2c = dcbt->entry[i].i2c_index;
2108 dcbt->entry[i].connector = idx++;
2112 dcbt->entry[i].connector = map[i2c] - 1;
2116 /* if we created more than one connector, destroy the connector
2117 * table - just in case it has random, rather than stub, entries.
2120 u8 *conntab = olddcb_conntab(bios->dev);
2127 parse_dcb_table(struct drm_device *dev, struct nvbios *bios)
2129 struct nouveau_drm *drm = nouveau_drm(dev);
2130 struct dcb_table *dcb = &bios->dcb;
2134 dcbt = olddcb_table(dev);
2136 /* handle pre-DCB boards */
2137 if (bios->type == NVBIOS_BMP) {
2138 fabricate_dcb_encoder_table(dev, bios);
2145 NV_INFO(drm, "DCB version %d.%d\n", dcbt[0] >> 4, dcbt[0] & 0xf);
2147 dcb->version = dcbt[0];
2148 olddcb_outp_foreach(dev, NULL, parse_dcb_entry);
2151 * apart for v2.1+ not being known for requiring merging, this
2152 * guarantees dcbent->index is the index of the entry in the rom image
2154 if (dcb->version < 0x21)
2155 merge_like_dcb_entries(dev, dcb);
2160 /* dump connector table entries to log, if any exist */
2162 while ((conn = olddcb_conn(dev, ++idx))) {
2163 if (conn[0] != 0xff) {
2164 NV_INFO(drm, "DCB conn %02d: ", idx);
2165 if (olddcb_conntab(dev)[3] < 4)
2166 printk("%04x\n", ROM16(conn[0]));
2168 printk("%08x\n", ROM32(conn[0]));
2171 dcb_fake_connectors(bios);
2175 static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry)
2178 * The header following the "HWSQ" signature has the number of entries,
2179 * and the entry size
2181 * An entry consists of a dword to write to the sequencer control reg
2182 * (0x00001304), followed by the ucode bytes, written sequentially,
2183 * starting at reg 0x00001400
2186 struct nouveau_drm *drm = nouveau_drm(dev);
2187 struct nouveau_device *device = nv_device(drm->device);
2188 uint8_t bytes_to_write;
2189 uint16_t hwsq_entry_offset;
2192 if (bios->data[hwsq_offset] <= entry) {
2193 NV_ERROR(drm, "Too few entries in HW sequencer table for "
2194 "requested entry\n");
2198 bytes_to_write = bios->data[hwsq_offset + 1];
2200 if (bytes_to_write != 36) {
2201 NV_ERROR(drm, "Unknown HW sequencer entry size\n");
2205 NV_INFO(drm, "Loading NV17 power sequencing microcode\n");
2207 hwsq_entry_offset = hwsq_offset + 2 + entry * bytes_to_write;
2209 /* set sequencer control */
2210 nv_wr32(device, 0x00001304, ROM32(bios->data[hwsq_entry_offset]));
2211 bytes_to_write -= 4;
2214 for (i = 0; i < bytes_to_write; i += 4)
2215 nv_wr32(device, 0x00001400 + i, ROM32(bios->data[hwsq_entry_offset + i + 4]));
2217 /* twiddle NV_PBUS_DEBUG_4 */
2218 nv_wr32(device, NV_PBUS_DEBUG_4, nv_rd32(device, NV_PBUS_DEBUG_4) | 0x18);
2223 static int load_nv17_hw_sequencer_ucode(struct drm_device *dev,
2224 struct nvbios *bios)
2227 * BMP based cards, from NV17, need a microcode loading to correctly
2228 * control the GPIO etc for LVDS panels
2230 * BIT based cards seem to do this directly in the init scripts
2232 * The microcode entries are found by the "HWSQ" signature.
2235 const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' };
2236 const int sz = sizeof(hwsq_signature);
2239 hwsq_offset = findstr(bios->data, bios->length, hwsq_signature, sz);
2243 /* always use entry 0? */
2244 return load_nv17_hwsq_ucode_entry(dev, bios, hwsq_offset + sz, 0);
2247 uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev)
2249 struct nouveau_drm *drm = nouveau_drm(dev);
2250 struct nvbios *bios = &drm->vbios;
2251 const uint8_t edid_sig[] = {
2252 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 };
2253 uint16_t offset = 0;
2255 int searchlen = NV_PROM_SIZE;
2258 return bios->fp.edid;
2261 newoffset = findstr(&bios->data[offset], searchlen,
2265 offset += newoffset;
2266 if (!nv_cksum(&bios->data[offset], EDID1_LEN))
2269 searchlen -= offset;
2273 NV_INFO(drm, "Found EDID in BIOS\n");
2275 return bios->fp.edid = &bios->data[offset];
2278 static bool NVInitVBIOS(struct drm_device *dev)
2280 struct nouveau_drm *drm = nouveau_drm(dev);
2281 struct nvbios *bios = &drm->vbios;
2283 memset(bios, 0, sizeof(struct nvbios));
2284 spin_lock_init(&bios->lock);
2287 bios->data = nouveau_bios(drm->device)->data;
2288 bios->length = nouveau_bios(drm->device)->size;
2292 static int nouveau_parse_vbios_struct(struct drm_device *dev)
2294 struct nouveau_drm *drm = nouveau_drm(dev);
2295 struct nvbios *bios = &drm->vbios;
2296 const uint8_t bit_signature[] = { 0xff, 0xb8, 'B', 'I', 'T' };
2297 const uint8_t bmp_signature[] = { 0xff, 0x7f, 'N', 'V', 0x0 };
2300 offset = findstr(bios->data, bios->length,
2301 bit_signature, sizeof(bit_signature));
2303 NV_INFO(drm, "BIT BIOS found\n");
2304 bios->type = NVBIOS_BIT;
2305 bios->offset = offset;
2306 return parse_bit_structure(bios, offset + 6);
2309 offset = findstr(bios->data, bios->length,
2310 bmp_signature, sizeof(bmp_signature));
2312 NV_INFO(drm, "BMP BIOS found\n");
2313 bios->type = NVBIOS_BMP;
2314 bios->offset = offset;
2315 return parse_bmp_structure(dev, bios, offset);
2318 NV_ERROR(drm, "No known BIOS signature found\n");
2323 nouveau_run_vbios_init(struct drm_device *dev)
2325 struct nouveau_drm *drm = nouveau_drm(dev);
2326 struct nvbios *bios = &drm->vbios;
2329 /* Reset the BIOS head to 0. */
2330 bios->state.crtchead = 0;
2332 if (bios->major_version < 5) /* BMP only */
2333 load_nv17_hw_sequencer_ucode(dev, bios);
2335 if (bios->execute) {
2336 bios->fp.last_script_invoc = 0;
2337 bios->fp.lvds_init_run = false;
2340 if (nv_device(drm->device)->card_type >= NV_50) {
2341 for (i = 0; bios->execute && i < bios->dcb.entries; i++) {
2342 nouveau_bios_run_display_table(dev, 0, 0,
2343 &bios->dcb.entry[i], -1);
2351 nouveau_bios_posted(struct drm_device *dev)
2353 struct nouveau_drm *drm = nouveau_drm(dev);
2356 if (nv_device(drm->device)->card_type >= NV_50) {
2357 if (NVReadVgaCrtc(dev, 0, 0x00) == 0 &&
2358 NVReadVgaCrtc(dev, 0, 0x1a) == 0)
2363 htotal = NVReadVgaCrtc(dev, 0, 0x06);
2364 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x01) << 8;
2365 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x20) << 4;
2366 htotal |= (NVReadVgaCrtc(dev, 0, 0x25) & 0x01) << 10;
2367 htotal |= (NVReadVgaCrtc(dev, 0, 0x41) & 0x01) << 11;
2369 return (htotal != 0);
2373 nouveau_bios_init(struct drm_device *dev)
2375 struct nouveau_drm *drm = nouveau_drm(dev);
2376 struct nvbios *bios = &drm->vbios;
2379 if (!NVInitVBIOS(dev))
2382 ret = nouveau_parse_vbios_struct(dev);
2386 ret = parse_dcb_table(dev, bios);
2390 if (!bios->major_version) /* we don't run version 0 bios */
2393 /* init script execution disabled */
2394 bios->execute = false;
2396 /* ... unless card isn't POSTed already */
2397 if (!nouveau_bios_posted(dev)) {
2398 NV_INFO(drm, "Adaptor not initialised, "
2399 "running VBIOS init tables.\n");
2400 bios->execute = true;
2403 ret = nouveau_run_vbios_init(dev);
2407 /* feature_byte on BMP is poor, but init always sets CR4B */
2408 if (bios->major_version < 5)
2409 bios->is_mobile = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_4B) & 0x40;
2411 /* all BIT systems need p_f_m_t for digital_min_front_porch */
2412 if (bios->is_mobile || bios->major_version >= 5)
2413 ret = parse_fp_mode_table(dev, bios);
2415 /* allow subsequent scripts to execute */
2416 bios->execute = true;
2422 nouveau_bios_takedown(struct drm_device *dev)