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Kevin O'Connor714325c2008-11-01 20:32:27 -04001// Option rom scanning code.
2//
3// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
4// Copyright (C) 2002 MandrakeSoft S.A.
5//
Kevin O'Connorb1b7c2a2009-01-15 20:52:58 -05006// This file may be distributed under the terms of the GNU LGPLv3 license.
Kevin O'Connor714325c2008-11-01 20:32:27 -04007
8#include "bregs.h" // struct bregs
Kevin O'Connor35ae7262009-01-19 15:44:44 -05009#include "farptr.h" // FLATPTR_TO_SEG
Kevin O'Connorc659fde2008-12-28 23:43:20 -050010#include "config.h" // CONFIG_*
Kevin O'Connor714325c2008-11-01 20:32:27 -040011#include "util.h" // dprintf
Kevin O'Connor862d5fb2011-06-20 22:19:17 -040012#include "pci.h" // foreachpci
Kevin O'Connorceea03c2008-11-08 21:36:35 -050013#include "pci_regs.h" // PCI_ROM_ADDRESS
14#include "pci_ids.h" // PCI_CLASS_DISPLAY_VGA
Kevin O'Connorc659fde2008-12-28 23:43:20 -050015#include "boot.h" // IPL
Gerd Hoffmannc4c9fae2009-12-18 12:16:04 +010016#include "paravirt.h" // qemu_cfg_*
Kevin O'Connorceea03c2008-11-08 21:36:35 -050017
18
19/****************************************************************
20 * Definitions
21 ****************************************************************/
Kevin O'Connor714325c2008-11-01 20:32:27 -040022
Kevin O'Connor714325c2008-11-01 20:32:27 -040023struct rom_header {
24 u16 signature;
25 u8 size;
26 u8 initVector[4];
27 u8 reserved[17];
28 u16 pcioffset;
29 u16 pnpoffset;
30} PACKED;
31
32struct pci_data {
33 u32 signature;
34 u16 vendor;
35 u16 device;
36 u16 vitaldata;
37 u16 dlen;
38 u8 drevision;
39 u8 class_lo;
40 u16 class_hi;
41 u16 ilen;
42 u16 irevision;
43 u8 type;
44 u8 indicator;
45 u16 reserved;
46} PACKED;
47
48struct pnp_data {
49 u32 signature;
50 u8 revision;
51 u8 len;
52 u16 nextoffset;
53 u8 reserved_08;
54 u8 checksum;
55 u32 devid;
56 u16 manufacturer;
57 u16 productname;
58 u8 type_lo;
59 u16 type_hi;
60 u8 dev_flags;
61 u16 bcv;
62 u16 dv;
63 u16 bev;
64 u16 reserved_1c;
65 u16 staticresource;
66} PACKED;
67
Kevin O'Connorceea03c2008-11-08 21:36:35 -050068#define OPTION_ROM_SIGNATURE 0xaa55
69#define OPTION_ROM_ALIGN 2048
70#define OPTION_ROM_INITVECTOR offsetof(struct rom_header, initVector[0])
Kevin O'Connor5a1b8282008-11-29 20:39:06 -050071#define PCI_ROM_SIGNATURE 0x52494350 // PCIR
Kevin O'Connor62eea672008-12-06 11:57:45 -050072#define PCIROM_CODETYPE_X86 0
Kevin O'Connorceea03c2008-11-08 21:36:35 -050073
Kevin O'Connore7739302009-07-26 19:16:09 -040074// The end of the last deployed rom.
Kevin O'Connor4d96edc2010-09-25 14:53:15 -040075u32 RomEnd = BUILD_ROM_START;
Kevin O'Connorceea03c2008-11-08 21:36:35 -050076
77
78/****************************************************************
79 * Helper functions
80 ****************************************************************/
81
Kevin O'Connor714325c2008-11-01 20:32:27 -040082// Execute a given option rom.
83static void
Kevin O'Connore8f00ee2009-07-04 04:04:36 -040084__callrom(struct rom_header *rom, u16 offset, u16 bdf)
Kevin O'Connor714325c2008-11-01 20:32:27 -040085{
Kevin O'Connor35ae7262009-01-19 15:44:44 -050086 u16 seg = FLATPTR_TO_SEG(rom);
Kevin O'Connor91b53a72009-05-05 22:52:09 -040087 dprintf(1, "Running option rom at %04x:%04x\n", seg, offset);
Kevin O'Connor714325c2008-11-01 20:32:27 -040088
89 struct bregs br;
90 memset(&br, 0, sizeof(br));
Kevin O'Connorf8e800d2009-09-24 21:01:16 -040091 br.flags = F_IF;
Kevin O'Connorceea03c2008-11-08 21:36:35 -050092 br.ax = bdf;
Kevin O'Connor714325c2008-11-01 20:32:27 -040093 br.bx = 0xffff;
94 br.dx = 0xffff;
95 br.es = SEG_BIOS;
Kevin O'Connor0c3068d2008-12-21 17:51:36 -050096 br.di = get_pnp_offset();
Kevin O'Connor9f985422009-09-09 11:34:39 -040097 br.code = SEGOFF(seg, offset);
Kevin O'Connorad901592009-12-13 11:25:25 -050098 start_preempt();
Kevin O'Connor6e5b4a42008-12-06 13:03:52 -050099 call16big(&br);
Kevin O'Connorad901592009-12-13 11:25:25 -0500100 finish_preempt();
Kevin O'Connor714325c2008-11-01 20:32:27 -0400101
102 debug_serial_setup();
Kevin O'Connor714325c2008-11-01 20:32:27 -0400103}
104
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400105// Execute a given option rom at the standard entry vector.
106static void
107callrom(struct rom_header *rom, u16 bdf)
108{
109 __callrom(rom, OPTION_ROM_INITVECTOR, bdf);
110}
111
Kevin O'Connor0a924122009-02-08 19:43:47 -0500112// Execute a BCV option rom registered via add_bcv().
113void
114call_bcv(u16 seg, u16 ip)
115{
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400116 __callrom(MAKE_FLATPTR(seg, 0), ip, 0);
Kevin O'Connor0a924122009-02-08 19:43:47 -0500117}
118
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500119// Verify that an option rom looks valid
120static int
121is_valid_rom(struct rom_header *rom)
122{
Kevin O'Connorc36273f2009-04-16 20:43:07 -0400123 dprintf(6, "Checking rom %p (sig %x size %d)\n"
124 , rom, rom->signature, rom->size);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500125 if (rom->signature != OPTION_ROM_SIGNATURE)
126 return 0;
Kevin O'Connor674e4602009-04-13 19:19:22 -0400127 if (! rom->size)
128 return 0;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500129 u32 len = rom->size * 512;
Kevin O'Connor94fd47e2009-02-15 15:21:10 -0500130 u8 sum = checksum(rom, len);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500131 if (sum != 0) {
132 dprintf(1, "Found option rom with bad checksum: loc=%p len=%d sum=%x\n"
133 , rom, len, sum);
Kevin O'Connorcc975642011-03-06 19:22:46 -0500134 if (CONFIG_OPTIONROMS_CHECKSUM)
135 return 0;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500136 }
137 return 1;
138}
139
140// Check if a valid option rom has a pnp struct; return it if so.
141static struct pnp_data *
142get_pnp_rom(struct rom_header *rom)
143{
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400144 struct pnp_data *pnp = (void*)((u8*)rom + rom->pnpoffset);
Kevin O'Connor0c3068d2008-12-21 17:51:36 -0500145 if (pnp->signature != PNP_SIGNATURE)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500146 return NULL;
147 return pnp;
148}
149
Kevin O'Connor3f57b5c2008-12-20 23:32:16 -0500150// Check for multiple pnp option rom headers.
151static struct pnp_data *
152get_pnp_next(struct rom_header *rom, struct pnp_data *pnp)
153{
154 if (! pnp->nextoffset)
155 return NULL;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400156 pnp = (void*)((u8*)rom + pnp->nextoffset);
Kevin O'Connor0c3068d2008-12-21 17:51:36 -0500157 if (pnp->signature != PNP_SIGNATURE)
Kevin O'Connor3f57b5c2008-12-20 23:32:16 -0500158 return NULL;
159 return pnp;
160}
161
Kevin O'Connor62eea672008-12-06 11:57:45 -0500162// Check if a valid option rom has a pci struct; return it if so.
163static struct pci_data *
164get_pci_rom(struct rom_header *rom)
165{
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400166 struct pci_data *pd = (void*)((u32)rom + rom->pcioffset);
167 if (pd->signature != PCI_ROM_SIGNATURE)
Kevin O'Connor62eea672008-12-06 11:57:45 -0500168 return NULL;
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400169 return pd;
Kevin O'Connor62eea672008-12-06 11:57:45 -0500170}
171
Kevin O'Connore8264652010-09-15 22:06:19 -0400172// Return start of code in 0xc0000-0xf0000 space.
173static inline u32 _max_rom(void) {
174 extern u8 code32flat_start[], code32init_end[];
Kevin O'Connor4a446d72010-09-25 12:46:38 -0400175 return CONFIG_RELOCATE_INIT ? (u32)code32init_end : (u32)code32flat_start;
Kevin O'Connore8264652010-09-15 22:06:19 -0400176}
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400177// Return the memory position up to which roms may be located.
Kevin O'Connore8264652010-09-15 22:06:19 -0400178static inline u32 max_rom(void) {
179 u32 end = _max_rom();
180 return end > BUILD_BIOS_ADDR ? BUILD_BIOS_ADDR : end;
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400181}
182
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500183// Copy a rom to its permanent location below 1MiB
184static struct rom_header *
185copy_rom(struct rom_header *rom)
186{
187 u32 romsize = rom->size * 512;
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400188 if (RomEnd + romsize > max_rom()) {
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500189 // Option rom doesn't fit.
Kevin O'Connorcfdc13f2010-02-14 13:07:54 -0500190 warn_noalloc();
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500191 return NULL;
192 }
Kevin O'Connorc36273f2009-04-16 20:43:07 -0400193 dprintf(4, "Copying option rom (size %d) from %p to %x\n"
Kevin O'Connore7739302009-07-26 19:16:09 -0400194 , romsize, rom, RomEnd);
Kevin O'Connor34036962009-12-05 18:51:53 -0500195 iomemcpy((void*)RomEnd, rom, romsize);
Kevin O'Connore7739302009-07-26 19:16:09 -0400196 return (void*)RomEnd;
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500197}
198
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400199// Run rom init code and note rom size.
200static int
201init_optionrom(struct rom_header *rom, u16 bdf, int isvga)
202{
203 if (! is_valid_rom(rom))
204 return -1;
205
206 if (isvga || get_pnp_rom(rom))
207 // Only init vga and PnP roms here.
208 callrom(rom, bdf);
209
Kevin O'Connore7739302009-07-26 19:16:09 -0400210 RomEnd = (u32)rom + ALIGN(rom->size * 512, OPTION_ROM_ALIGN);
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400211
212 return 0;
213}
214
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500215#define RS_PCIROM (1LL<<33)
216
217static void
218setRomSource(u64 *sources, struct rom_header *rom, u64 source)
219{
220 if (sources)
221 sources[((u32)rom - BUILD_ROM_START) / OPTION_ROM_ALIGN] = source;
222}
223
Kevin O'Connor031ef552010-12-27 19:26:57 -0500224static int
225getRomPriority(u64 *sources, struct rom_header *rom, int instance)
226{
227 u64 source = sources[((u32)rom - BUILD_ROM_START) / OPTION_ROM_ALIGN];
228 if (!source)
229 return -1;
230 if (source & RS_PCIROM)
231 return bootprio_find_pci_rom(source, instance);
232 return bootprio_find_named_rom(romfile_name(source), instance);
233}
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400234
235/****************************************************************
236 * Roms in CBFS
237 ****************************************************************/
238
239// Check if an option rom is at a hardcoded location or in CBFS.
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500240static struct rom_header *
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400241lookup_hardcode(struct pci_device *pci)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500242{
Kevin O'Connore2304262010-06-13 16:05:17 -0400243 char fname[17];
244 snprintf(fname, sizeof(fname), "pci%04x,%04x.rom"
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400245 , pci->vendor, pci->device);
Kevin O'Connore2304262010-06-13 16:05:17 -0400246 int ret = romfile_copy(romfile_find(fname), (void*)RomEnd
247 , max_rom() - RomEnd);
248 if (ret <= 0)
Kevin O'Connorcbd6ca02009-04-27 21:51:13 -0400249 return NULL;
Kevin O'Connore7739302009-07-26 19:16:09 -0400250 return (void*)RomEnd;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500251}
252
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400253// Run all roms in a given CBFS directory.
254static void
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500255run_file_roms(const char *prefix, int isvga, u64 *sources)
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400256{
Kevin O'Connore2304262010-06-13 16:05:17 -0400257 u32 file = 0;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400258 for (;;) {
Kevin O'Connore2304262010-06-13 16:05:17 -0400259 file = romfile_findprefix(prefix, file);
Kevin O'Connor1f836252009-08-16 20:17:35 -0400260 if (!file)
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400261 break;
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500262 struct rom_header *rom = (void*)RomEnd;
263 int ret = romfile_copy(file, rom, max_rom() - RomEnd);
264 if (ret > 0) {
265 setRomSource(sources, rom, file);
266 init_optionrom(rom, 0, isvga);
267 }
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400268 }
269}
270
271
272/****************************************************************
273 * PCI roms
274 ****************************************************************/
275
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400276// Verify device is a vga device with legacy address decoding enabled.
277static int
278is_pci_vga(struct pci_device *pci)
279{
280 if (pci->class != PCI_CLASS_DISPLAY_VGA)
281 return 0;
282 u16 cmd = pci_config_readw(pci->bdf, PCI_COMMAND);
283 if (!(cmd & PCI_COMMAND_IO && cmd & PCI_COMMAND_MEMORY))
284 return 0;
285 while (pci->parent) {
286 pci = pci->parent;
287 u32 ctrl = pci_config_readb(pci->bdf, PCI_BRIDGE_CONTROL);
288 if (!(ctrl & PCI_BRIDGE_CTL_VGA))
289 return 0;
290 }
291 return 1;
292}
293
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500294// Map the option rom of a given PCI device.
295static struct rom_header *
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400296map_pcirom(struct pci_device *pci)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500297{
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400298 u16 bdf = pci->bdf;
Kevin O'Connor91b53a72009-05-05 22:52:09 -0400299 dprintf(6, "Attempting to map option rom on dev %02x:%02x.%x\n"
300 , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf));
Kevin O'Connore5a36d52008-11-12 20:10:13 -0500301
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400302 if ((pci->header_type & 0x7f) != PCI_HEADER_TYPE_NORMAL) {
303 dprintf(6, "Skipping non-normal pci device (type=%x)\n"
304 , pci->header_type);
Kevin O'Connor62eea672008-12-06 11:57:45 -0500305 return NULL;
306 }
307
Kevin O'Connorbe19cdc2008-11-09 15:33:47 -0500308 u32 orig = pci_config_readl(bdf, PCI_ROM_ADDRESS);
309 pci_config_writel(bdf, PCI_ROM_ADDRESS, ~PCI_ROM_ADDRESS_ENABLE);
310 u32 sz = pci_config_readl(bdf, PCI_ROM_ADDRESS);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500311
Kevin O'Connore5a36d52008-11-12 20:10:13 -0500312 dprintf(6, "Option rom sizing returned %x %x\n", orig, sz);
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500313 orig &= ~PCI_ROM_ADDRESS_ENABLE;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500314 if (!sz || sz == 0xffffffff)
315 goto fail;
316
Kevin O'Connor64cf2fb2009-04-18 17:01:02 -0400317 if (orig == sz || (u32)(orig + 4*1024*1024) < 20*1024*1024) {
318 // Don't try to map to a pci addresses at its max, in the last
319 // 4MiB of ram, or the first 16MiB of ram.
Kevin O'Connor62eea672008-12-06 11:57:45 -0500320 dprintf(6, "Preset rom address doesn't look valid\n");
321 goto fail;
322 }
323
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500324 // Looks like a rom - enable it.
325 pci_config_writel(bdf, PCI_ROM_ADDRESS, orig | PCI_ROM_ADDRESS_ENABLE);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500326
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400327 struct rom_header *rom = (void*)orig;
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500328 for (;;) {
Kevin O'Connor49cc72b2010-05-23 10:22:23 -0400329 dprintf(5, "Inspecting possible rom at %p (vd=%04x:%04x"
330 " bdf=%02x:%02x.%x)\n"
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400331 , rom, pci->vendor, pci->device
Kevin O'Connor49cc72b2010-05-23 10:22:23 -0400332 , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf));
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500333 if (rom->signature != OPTION_ROM_SIGNATURE) {
334 dprintf(6, "No option rom signature (got %x)\n", rom->signature);
335 goto fail;
336 }
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400337 struct pci_data *pd = get_pci_rom(rom);
338 if (! pd) {
Kevin O'Connor62eea672008-12-06 11:57:45 -0500339 dprintf(6, "No valid pci signature found\n");
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500340 goto fail;
341 }
Kevin O'Connor62eea672008-12-06 11:57:45 -0500342
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400343 if (pd->vendor == pci->vendor && pd->device == pci->device
344 && pd->type == PCIROM_CODETYPE_X86)
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500345 // A match
346 break;
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400347 dprintf(6, "Didn't match dev/ven (got %04x:%04x) or type (got %d)\n"
348 , pd->vendor, pd->device, pd->type);
349 if (pd->indicator & 0x80) {
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500350 dprintf(6, "No more images left\n");
351 goto fail;
352 }
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400353 rom = (void*)((u32)rom + pd->ilen * 512);
Kevin O'Connore5a36d52008-11-12 20:10:13 -0500354 }
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500355
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500356 rom = copy_rom(rom);
357 pci_config_writel(bdf, PCI_ROM_ADDRESS, orig);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500358 return rom;
359fail:
360 // Not valid - restore original and exit.
Kevin O'Connorbe19cdc2008-11-09 15:33:47 -0500361 pci_config_writel(bdf, PCI_ROM_ADDRESS, orig);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500362 return NULL;
363}
364
365// Attempt to map and initialize the option rom on a given PCI device.
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400366static int
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400367init_pcirom(struct pci_device *pci, int isvga, u64 *sources)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500368{
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400369 u16 bdf = pci->bdf;
Kevin O'Connor49cc72b2010-05-23 10:22:23 -0400370 dprintf(4, "Attempting to init PCI bdf %02x:%02x.%x (vd %04x:%04x)\n"
Kevin O'Connor91b53a72009-05-05 22:52:09 -0400371 , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf)
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400372 , pci->vendor, pci->device);
373 struct rom_header *rom = lookup_hardcode(pci);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500374 if (! rom)
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400375 rom = map_pcirom(pci);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500376 if (! rom)
377 // No ROM present.
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400378 return -1;
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500379 setRomSource(sources, rom, RS_PCIROM | bdf);
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400380 return init_optionrom(rom, bdf, isvga);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500381}
382
383
384/****************************************************************
385 * Non-VGA option rom init
386 ****************************************************************/
387
388void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500389optionrom_setup(void)
Kevin O'Connor714325c2008-11-01 20:32:27 -0400390{
391 if (! CONFIG_OPTIONROMS)
392 return;
393
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500394 dprintf(1, "Scan for option roms\n");
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500395 u64 sources[(BUILD_BIOS_ADDR - BUILD_ROM_START) / OPTION_ROM_ALIGN];
396 memset(sources, 0, sizeof(sources));
Kevin O'Connore7739302009-07-26 19:16:09 -0400397 u32 post_vga = RomEnd;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500398
399 if (CONFIG_OPTIONROMS_DEPLOYED) {
400 // Option roms are already deployed on the system.
Kevin O'Connore7739302009-07-26 19:16:09 -0400401 u32 pos = RomEnd;
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400402 while (pos < max_rom()) {
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400403 int ret = init_optionrom((void*)pos, 0, 0);
404 if (ret)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500405 pos += OPTION_ROM_ALIGN;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400406 else
Kevin O'Connore7739302009-07-26 19:16:09 -0400407 pos = RomEnd;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500408 }
409 } else {
410 // Find and deploy PCI roms.
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400411 struct pci_device *pci;
412 foreachpci(pci) {
413 u16 v = pci->class;
Kevin O'Connor62eea672008-12-06 11:57:45 -0500414 if (v == 0x0000 || v == 0xffff || v == PCI_CLASS_DISPLAY_VGA
415 || (CONFIG_ATA && v == PCI_CLASS_STORAGE_IDE))
Kevin O'Connorbe19cdc2008-11-09 15:33:47 -0500416 continue;
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400417 init_pcirom(pci, 0, sources);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500418 }
Kevin O'Connor1edc89d2009-04-30 21:50:35 -0400419
420 // Find and deploy CBFS roms not associated with a device.
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500421 run_file_roms("genroms/", 0, sources);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500422 }
423
424 // All option roms found and deployed - now build BEV/BCV vectors.
425
426 u32 pos = post_vga;
Kevin O'Connore7739302009-07-26 19:16:09 -0400427 while (pos < RomEnd) {
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400428 struct rom_header *rom = (void*)pos;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500429 if (! is_valid_rom(rom)) {
430 pos += OPTION_ROM_ALIGN;
Kevin O'Connor714325c2008-11-01 20:32:27 -0400431 continue;
432 }
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500433 pos += ALIGN(rom->size * 512, OPTION_ROM_ALIGN);
434 struct pnp_data *pnp = get_pnp_rom(rom);
435 if (! pnp) {
Kevin O'Connor0a924122009-02-08 19:43:47 -0500436 // Legacy rom.
Kevin O'Connor031ef552010-12-27 19:26:57 -0500437 boot_add_bcv(FLATPTR_TO_SEG(rom), OPTION_ROM_INITVECTOR, 0
438 , getRomPriority(sources, rom, 0));
Kevin O'Connor714325c2008-11-01 20:32:27 -0400439 continue;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500440 }
441 // PnP rom.
Kevin O'Connor031ef552010-12-27 19:26:57 -0500442 if (pnp->bev) {
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500443 // Can boot system - add to IPL list.
Kevin O'Connor031ef552010-12-27 19:26:57 -0500444 boot_add_bev(FLATPTR_TO_SEG(rom), pnp->bev, pnp->productname
445 , getRomPriority(sources, rom, 0));
446 } else {
Kevin O'Connor3f57b5c2008-12-20 23:32:16 -0500447 // Check for BCV (there may be multiple).
Kevin O'Connor031ef552010-12-27 19:26:57 -0500448 int instance = 0;
Kevin O'Connor3f57b5c2008-12-20 23:32:16 -0500449 while (pnp && pnp->bcv) {
Kevin O'Connor031ef552010-12-27 19:26:57 -0500450 boot_add_bcv(FLATPTR_TO_SEG(rom), pnp->bcv, pnp->productname
451 , getRomPriority(sources, rom, instance++));
Kevin O'Connor3f57b5c2008-12-20 23:32:16 -0500452 pnp = get_pnp_next(rom, pnp);
453 }
Kevin O'Connor031ef552010-12-27 19:26:57 -0500454 }
Kevin O'Connor714325c2008-11-01 20:32:27 -0400455 }
456}
457
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500458
459/****************************************************************
460 * VGA init
461 ****************************************************************/
462
Kevin O'Connor714325c2008-11-01 20:32:27 -0400463// Call into vga code to turn on console.
464void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500465vga_setup(void)
Kevin O'Connor714325c2008-11-01 20:32:27 -0400466{
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500467 if (! CONFIG_OPTIONROMS)
468 return;
469
Kevin O'Connor714325c2008-11-01 20:32:27 -0400470 dprintf(1, "Scan for VGA option rom\n");
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500471
472 if (CONFIG_OPTIONROMS_DEPLOYED) {
473 // Option roms are already deployed on the system.
Kevin O'Connore7739302009-07-26 19:16:09 -0400474 init_optionrom((void*)BUILD_ROM_START, 0, 1);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500475 } else {
Kevin O'Connore8264652010-09-15 22:06:19 -0400476 // Clear option rom memory
477 memset((void*)RomEnd, 0, _max_rom() - RomEnd);
478
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500479 // Find and deploy PCI VGA rom.
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400480 struct pci_device *pci;
481 foreachpci(pci) {
482 if (!is_pci_vga(pci))
483 continue;
484 VGAbdf = pci->bdf;
485 init_pcirom(pci, 1, NULL);
486 break;
487 }
Kevin O'Connor09880da2009-06-17 20:35:41 -0400488
489 // Find and deploy CBFS vga-style roms not associated with a device.
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500490 run_file_roms("vgaroms/", 1, NULL);
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400491 }
492
Kevin O'Connore7739302009-07-26 19:16:09 -0400493 if (RomEnd == BUILD_ROM_START) {
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400494 // No VGA rom found
Kevin O'Connore7739302009-07-26 19:16:09 -0400495 RomEnd += OPTION_ROM_ALIGN;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400496 return;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500497 }
Kevin O'Connor714325c2008-11-01 20:32:27 -0400498
Kevin O'Connorafbed1b2010-06-28 07:34:53 -0400499 enable_vga_console();
Kevin O'Connor714325c2008-11-01 20:32:27 -0400500}
Kevin O'Connord282af72009-07-04 04:10:32 -0400501
502void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500503s3_resume_vga_init(void)
Kevin O'Connord282af72009-07-04 04:10:32 -0400504{
505 if (!CONFIG_S3_RESUME_VGA_INIT)
506 return;
Kevin O'Connore7739302009-07-26 19:16:09 -0400507 struct rom_header *rom = (void*)BUILD_ROM_START;
Kevin O'Connord282af72009-07-04 04:10:32 -0400508 if (! is_valid_rom(rom))
509 return;
510 callrom(rom, 0);
511}