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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_*
Julian Pidancetbc6097b2011-12-19 05:07:54 +000017#include "optionroms.h" // struct rom_header
Kevin O'Connorceea03c2008-11-08 21:36:35 -050018
19/****************************************************************
20 * Definitions
21 ****************************************************************/
Kevin O'Connor714325c2008-11-01 20:32:27 -040022
Kevin O'Connore7739302009-07-26 19:16:09 -040023// The end of the last deployed rom.
Kevin O'Connor4d96edc2010-09-25 14:53:15 -040024u32 RomEnd = BUILD_ROM_START;
Kevin O'Connorceea03c2008-11-08 21:36:35 -050025
26
27/****************************************************************
28 * Helper functions
29 ****************************************************************/
30
Kevin O'Connor714325c2008-11-01 20:32:27 -040031// Execute a given option rom.
32static void
Kevin O'Connore8f00ee2009-07-04 04:04:36 -040033__callrom(struct rom_header *rom, u16 offset, u16 bdf)
Kevin O'Connor714325c2008-11-01 20:32:27 -040034{
Kevin O'Connor35ae7262009-01-19 15:44:44 -050035 u16 seg = FLATPTR_TO_SEG(rom);
Kevin O'Connor91b53a72009-05-05 22:52:09 -040036 dprintf(1, "Running option rom at %04x:%04x\n", seg, offset);
Kevin O'Connor714325c2008-11-01 20:32:27 -040037
38 struct bregs br;
39 memset(&br, 0, sizeof(br));
Kevin O'Connorf8e800d2009-09-24 21:01:16 -040040 br.flags = F_IF;
Kevin O'Connorceea03c2008-11-08 21:36:35 -050041 br.ax = bdf;
Kevin O'Connor714325c2008-11-01 20:32:27 -040042 br.bx = 0xffff;
43 br.dx = 0xffff;
44 br.es = SEG_BIOS;
Kevin O'Connor0c3068d2008-12-21 17:51:36 -050045 br.di = get_pnp_offset();
Kevin O'Connor9f985422009-09-09 11:34:39 -040046 br.code = SEGOFF(seg, offset);
Kevin O'Connorad901592009-12-13 11:25:25 -050047 start_preempt();
Kevin O'Connor6e5b4a42008-12-06 13:03:52 -050048 call16big(&br);
Kevin O'Connorad901592009-12-13 11:25:25 -050049 finish_preempt();
Kevin O'Connor714325c2008-11-01 20:32:27 -040050
51 debug_serial_setup();
Kevin O'Connor714325c2008-11-01 20:32:27 -040052}
53
Kevin O'Connore8f00ee2009-07-04 04:04:36 -040054// Execute a given option rom at the standard entry vector.
55static void
56callrom(struct rom_header *rom, u16 bdf)
57{
58 __callrom(rom, OPTION_ROM_INITVECTOR, bdf);
59}
60
Kevin O'Connor0a924122009-02-08 19:43:47 -050061// Execute a BCV option rom registered via add_bcv().
62void
63call_bcv(u16 seg, u16 ip)
64{
Kevin O'Connore8f00ee2009-07-04 04:04:36 -040065 __callrom(MAKE_FLATPTR(seg, 0), ip, 0);
Kevin O'Connor0a924122009-02-08 19:43:47 -050066}
67
Kevin O'Connore010d852011-07-05 20:47:35 -040068static int EnforceChecksum;
69
Kevin O'Connorceea03c2008-11-08 21:36:35 -050070// Verify that an option rom looks valid
71static int
72is_valid_rom(struct rom_header *rom)
73{
Kevin O'Connorc36273f2009-04-16 20:43:07 -040074 dprintf(6, "Checking rom %p (sig %x size %d)\n"
75 , rom, rom->signature, rom->size);
Kevin O'Connorceea03c2008-11-08 21:36:35 -050076 if (rom->signature != OPTION_ROM_SIGNATURE)
77 return 0;
Kevin O'Connor674e4602009-04-13 19:19:22 -040078 if (! rom->size)
79 return 0;
Kevin O'Connorceea03c2008-11-08 21:36:35 -050080 u32 len = rom->size * 512;
Kevin O'Connor94fd47e2009-02-15 15:21:10 -050081 u8 sum = checksum(rom, len);
Kevin O'Connorceea03c2008-11-08 21:36:35 -050082 if (sum != 0) {
83 dprintf(1, "Found option rom with bad checksum: loc=%p len=%d sum=%x\n"
84 , rom, len, sum);
Kevin O'Connore010d852011-07-05 20:47:35 -040085 if (EnforceChecksum)
Kevin O'Connorcc975642011-03-06 19:22:46 -050086 return 0;
Kevin O'Connorceea03c2008-11-08 21:36:35 -050087 }
88 return 1;
89}
90
91// Check if a valid option rom has a pnp struct; return it if so.
92static struct pnp_data *
93get_pnp_rom(struct rom_header *rom)
94{
Kevin O'Connore8f00ee2009-07-04 04:04:36 -040095 struct pnp_data *pnp = (void*)((u8*)rom + rom->pnpoffset);
Kevin O'Connor0c3068d2008-12-21 17:51:36 -050096 if (pnp->signature != PNP_SIGNATURE)
Kevin O'Connorceea03c2008-11-08 21:36:35 -050097 return NULL;
98 return pnp;
99}
100
Kevin O'Connor3f57b5c2008-12-20 23:32:16 -0500101// Check for multiple pnp option rom headers.
102static struct pnp_data *
103get_pnp_next(struct rom_header *rom, struct pnp_data *pnp)
104{
105 if (! pnp->nextoffset)
106 return NULL;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400107 pnp = (void*)((u8*)rom + pnp->nextoffset);
Kevin O'Connor0c3068d2008-12-21 17:51:36 -0500108 if (pnp->signature != PNP_SIGNATURE)
Kevin O'Connor3f57b5c2008-12-20 23:32:16 -0500109 return NULL;
110 return pnp;
111}
112
Kevin O'Connor62eea672008-12-06 11:57:45 -0500113// Check if a valid option rom has a pci struct; return it if so.
114static struct pci_data *
115get_pci_rom(struct rom_header *rom)
116{
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400117 struct pci_data *pd = (void*)((u32)rom + rom->pcioffset);
118 if (pd->signature != PCI_ROM_SIGNATURE)
Kevin O'Connor62eea672008-12-06 11:57:45 -0500119 return NULL;
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400120 return pd;
Kevin O'Connor62eea672008-12-06 11:57:45 -0500121}
122
Kevin O'Connore8264652010-09-15 22:06:19 -0400123// Return start of code in 0xc0000-0xf0000 space.
124static inline u32 _max_rom(void) {
125 extern u8 code32flat_start[], code32init_end[];
Kevin O'Connor4a446d72010-09-25 12:46:38 -0400126 return CONFIG_RELOCATE_INIT ? (u32)code32init_end : (u32)code32flat_start;
Kevin O'Connore8264652010-09-15 22:06:19 -0400127}
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400128// Return the memory position up to which roms may be located.
Kevin O'Connore8264652010-09-15 22:06:19 -0400129static inline u32 max_rom(void) {
130 u32 end = _max_rom();
131 return end > BUILD_BIOS_ADDR ? BUILD_BIOS_ADDR : end;
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400132}
133
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500134// Copy a rom to its permanent location below 1MiB
135static struct rom_header *
136copy_rom(struct rom_header *rom)
137{
138 u32 romsize = rom->size * 512;
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400139 if (RomEnd + romsize > max_rom()) {
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500140 // Option rom doesn't fit.
Kevin O'Connorcfdc13f2010-02-14 13:07:54 -0500141 warn_noalloc();
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500142 return NULL;
143 }
Kevin O'Connorc36273f2009-04-16 20:43:07 -0400144 dprintf(4, "Copying option rom (size %d) from %p to %x\n"
Kevin O'Connore7739302009-07-26 19:16:09 -0400145 , romsize, rom, RomEnd);
Kevin O'Connor34036962009-12-05 18:51:53 -0500146 iomemcpy((void*)RomEnd, rom, romsize);
Kevin O'Connore7739302009-07-26 19:16:09 -0400147 return (void*)RomEnd;
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500148}
149
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400150// Run rom init code and note rom size.
151static int
152init_optionrom(struct rom_header *rom, u16 bdf, int isvga)
153{
154 if (! is_valid_rom(rom))
155 return -1;
156
157 if (isvga || get_pnp_rom(rom))
158 // Only init vga and PnP roms here.
159 callrom(rom, bdf);
160
Kevin O'Connore7739302009-07-26 19:16:09 -0400161 RomEnd = (u32)rom + ALIGN(rom->size * 512, OPTION_ROM_ALIGN);
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400162
163 return 0;
164}
165
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500166#define RS_PCIROM (1LL<<33)
167
168static void
169setRomSource(u64 *sources, struct rom_header *rom, u64 source)
170{
171 if (sources)
172 sources[((u32)rom - BUILD_ROM_START) / OPTION_ROM_ALIGN] = source;
173}
174
Kevin O'Connor031ef552010-12-27 19:26:57 -0500175static int
176getRomPriority(u64 *sources, struct rom_header *rom, int instance)
177{
178 u64 source = sources[((u32)rom - BUILD_ROM_START) / OPTION_ROM_ALIGN];
179 if (!source)
180 return -1;
181 if (source & RS_PCIROM)
Kevin O'Connorfce91892011-07-09 14:47:47 -0400182 return bootprio_find_pci_rom((void*)(u32)source, instance);
Kevin O'Connor031ef552010-12-27 19:26:57 -0500183 return bootprio_find_named_rom(romfile_name(source), instance);
184}
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400185
Kevin O'Connorc1de91b2011-07-02 13:50:21 -0400186
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400187/****************************************************************
188 * Roms in CBFS
189 ****************************************************************/
190
191// Check if an option rom is at a hardcoded location or in CBFS.
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500192static struct rom_header *
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400193lookup_hardcode(struct pci_device *pci)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500194{
Kevin O'Connore2304262010-06-13 16:05:17 -0400195 char fname[17];
196 snprintf(fname, sizeof(fname), "pci%04x,%04x.rom"
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400197 , pci->vendor, pci->device);
Kevin O'Connore2304262010-06-13 16:05:17 -0400198 int ret = romfile_copy(romfile_find(fname), (void*)RomEnd
199 , max_rom() - RomEnd);
200 if (ret <= 0)
Kevin O'Connorcbd6ca02009-04-27 21:51:13 -0400201 return NULL;
Kevin O'Connore7739302009-07-26 19:16:09 -0400202 return (void*)RomEnd;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500203}
204
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400205// Run all roms in a given CBFS directory.
206static void
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500207run_file_roms(const char *prefix, int isvga, u64 *sources)
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400208{
Kevin O'Connore2304262010-06-13 16:05:17 -0400209 u32 file = 0;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400210 for (;;) {
Kevin O'Connore2304262010-06-13 16:05:17 -0400211 file = romfile_findprefix(prefix, file);
Kevin O'Connor1f836252009-08-16 20:17:35 -0400212 if (!file)
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400213 break;
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500214 struct rom_header *rom = (void*)RomEnd;
215 int ret = romfile_copy(file, rom, max_rom() - RomEnd);
216 if (ret > 0) {
217 setRomSource(sources, rom, file);
218 init_optionrom(rom, 0, isvga);
219 }
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400220 }
221}
222
223
224/****************************************************************
225 * PCI roms
226 ****************************************************************/
227
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400228// Verify device is a vga device with legacy address decoding enabled.
229static int
230is_pci_vga(struct pci_device *pci)
231{
232 if (pci->class != PCI_CLASS_DISPLAY_VGA)
233 return 0;
234 u16 cmd = pci_config_readw(pci->bdf, PCI_COMMAND);
235 if (!(cmd & PCI_COMMAND_IO && cmd & PCI_COMMAND_MEMORY))
236 return 0;
237 while (pci->parent) {
238 pci = pci->parent;
239 u32 ctrl = pci_config_readb(pci->bdf, PCI_BRIDGE_CONTROL);
240 if (!(ctrl & PCI_BRIDGE_CTL_VGA))
241 return 0;
242 }
243 return 1;
244}
245
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500246// Map the option rom of a given PCI device.
247static struct rom_header *
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400248map_pcirom(struct pci_device *pci)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500249{
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400250 u16 bdf = pci->bdf;
Kevin O'Connor91b53a72009-05-05 22:52:09 -0400251 dprintf(6, "Attempting to map option rom on dev %02x:%02x.%x\n"
252 , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf));
Kevin O'Connore5a36d52008-11-12 20:10:13 -0500253
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400254 if ((pci->header_type & 0x7f) != PCI_HEADER_TYPE_NORMAL) {
255 dprintf(6, "Skipping non-normal pci device (type=%x)\n"
256 , pci->header_type);
Kevin O'Connor62eea672008-12-06 11:57:45 -0500257 return NULL;
258 }
259
Kevin O'Connorbe19cdc2008-11-09 15:33:47 -0500260 u32 orig = pci_config_readl(bdf, PCI_ROM_ADDRESS);
261 pci_config_writel(bdf, PCI_ROM_ADDRESS, ~PCI_ROM_ADDRESS_ENABLE);
262 u32 sz = pci_config_readl(bdf, PCI_ROM_ADDRESS);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500263
Kevin O'Connore5a36d52008-11-12 20:10:13 -0500264 dprintf(6, "Option rom sizing returned %x %x\n", orig, sz);
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500265 orig &= ~PCI_ROM_ADDRESS_ENABLE;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500266 if (!sz || sz == 0xffffffff)
267 goto fail;
268
Kevin O'Connor64cf2fb2009-04-18 17:01:02 -0400269 if (orig == sz || (u32)(orig + 4*1024*1024) < 20*1024*1024) {
270 // Don't try to map to a pci addresses at its max, in the last
271 // 4MiB of ram, or the first 16MiB of ram.
Kevin O'Connor62eea672008-12-06 11:57:45 -0500272 dprintf(6, "Preset rom address doesn't look valid\n");
273 goto fail;
274 }
275
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500276 // Looks like a rom - enable it.
277 pci_config_writel(bdf, PCI_ROM_ADDRESS, orig | PCI_ROM_ADDRESS_ENABLE);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500278
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400279 struct rom_header *rom = (void*)orig;
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500280 for (;;) {
Kevin O'Connor49cc72b2010-05-23 10:22:23 -0400281 dprintf(5, "Inspecting possible rom at %p (vd=%04x:%04x"
282 " bdf=%02x:%02x.%x)\n"
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400283 , rom, pci->vendor, pci->device
Kevin O'Connor49cc72b2010-05-23 10:22:23 -0400284 , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf));
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500285 if (rom->signature != OPTION_ROM_SIGNATURE) {
286 dprintf(6, "No option rom signature (got %x)\n", rom->signature);
287 goto fail;
288 }
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400289 struct pci_data *pd = get_pci_rom(rom);
290 if (! pd) {
Kevin O'Connor62eea672008-12-06 11:57:45 -0500291 dprintf(6, "No valid pci signature found\n");
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500292 goto fail;
293 }
Kevin O'Connor62eea672008-12-06 11:57:45 -0500294
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400295 if (pd->vendor == pci->vendor && pd->device == pci->device
296 && pd->type == PCIROM_CODETYPE_X86)
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500297 // A match
298 break;
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400299 dprintf(6, "Didn't match dev/ven (got %04x:%04x) or type (got %d)\n"
300 , pd->vendor, pd->device, pd->type);
301 if (pd->indicator & 0x80) {
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500302 dprintf(6, "No more images left\n");
303 goto fail;
304 }
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400305 rom = (void*)((u32)rom + pd->ilen * 512);
Kevin O'Connore5a36d52008-11-12 20:10:13 -0500306 }
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500307
Kevin O'Connor5a1b8282008-11-29 20:39:06 -0500308 rom = copy_rom(rom);
309 pci_config_writel(bdf, PCI_ROM_ADDRESS, orig);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500310 return rom;
311fail:
312 // Not valid - restore original and exit.
Kevin O'Connorbe19cdc2008-11-09 15:33:47 -0500313 pci_config_writel(bdf, PCI_ROM_ADDRESS, orig);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500314 return NULL;
315}
316
317// Attempt to map and initialize the option rom on a given PCI device.
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400318static int
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400319init_pcirom(struct pci_device *pci, int isvga, u64 *sources)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500320{
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400321 u16 bdf = pci->bdf;
Kevin O'Connor49cc72b2010-05-23 10:22:23 -0400322 dprintf(4, "Attempting to init PCI bdf %02x:%02x.%x (vd %04x:%04x)\n"
Kevin O'Connor91b53a72009-05-05 22:52:09 -0400323 , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf)
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400324 , pci->vendor, pci->device);
325 struct rom_header *rom = lookup_hardcode(pci);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500326 if (! rom)
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400327 rom = map_pcirom(pci);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500328 if (! rom)
329 // No ROM present.
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400330 return -1;
Kevin O'Connorfce91892011-07-09 14:47:47 -0400331 setRomSource(sources, rom, RS_PCIROM | (u32)pci);
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400332 return init_optionrom(rom, bdf, isvga);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500333}
334
335
336/****************************************************************
337 * Non-VGA option rom init
338 ****************************************************************/
339
340void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500341optionrom_setup(void)
Kevin O'Connor714325c2008-11-01 20:32:27 -0400342{
343 if (! CONFIG_OPTIONROMS)
344 return;
345
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500346 dprintf(1, "Scan for option roms\n");
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500347 u64 sources[(BUILD_BIOS_ADDR - BUILD_ROM_START) / OPTION_ROM_ALIGN];
348 memset(sources, 0, sizeof(sources));
Kevin O'Connore7739302009-07-26 19:16:09 -0400349 u32 post_vga = RomEnd;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500350
351 if (CONFIG_OPTIONROMS_DEPLOYED) {
352 // Option roms are already deployed on the system.
Kevin O'Connore7739302009-07-26 19:16:09 -0400353 u32 pos = RomEnd;
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400354 while (pos < max_rom()) {
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400355 int ret = init_optionrom((void*)pos, 0, 0);
356 if (ret)
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500357 pos += OPTION_ROM_ALIGN;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400358 else
Kevin O'Connore7739302009-07-26 19:16:09 -0400359 pos = RomEnd;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500360 }
361 } else {
362 // Find and deploy PCI roms.
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400363 struct pci_device *pci;
364 foreachpci(pci) {
Kevin O'Connor76b5e712011-06-21 22:52:51 -0400365 if (pci->class == PCI_CLASS_DISPLAY_VGA || pci->have_driver)
Kevin O'Connorbe19cdc2008-11-09 15:33:47 -0500366 continue;
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400367 init_pcirom(pci, 0, sources);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500368 }
Kevin O'Connor1edc89d2009-04-30 21:50:35 -0400369
370 // Find and deploy CBFS roms not associated with a device.
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500371 run_file_roms("genroms/", 0, sources);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500372 }
373
374 // All option roms found and deployed - now build BEV/BCV vectors.
375
376 u32 pos = post_vga;
Kevin O'Connore7739302009-07-26 19:16:09 -0400377 while (pos < RomEnd) {
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400378 struct rom_header *rom = (void*)pos;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500379 if (! is_valid_rom(rom)) {
380 pos += OPTION_ROM_ALIGN;
Kevin O'Connor714325c2008-11-01 20:32:27 -0400381 continue;
382 }
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500383 pos += ALIGN(rom->size * 512, OPTION_ROM_ALIGN);
384 struct pnp_data *pnp = get_pnp_rom(rom);
385 if (! pnp) {
Kevin O'Connor0a924122009-02-08 19:43:47 -0500386 // Legacy rom.
Kevin O'Connor031ef552010-12-27 19:26:57 -0500387 boot_add_bcv(FLATPTR_TO_SEG(rom), OPTION_ROM_INITVECTOR, 0
388 , getRomPriority(sources, rom, 0));
Kevin O'Connor714325c2008-11-01 20:32:27 -0400389 continue;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500390 }
Kevin O'Connor1e157252012-01-14 11:55:35 -0500391 // PnP rom - check for BEV and BCV boot capabilities.
392 int instance = 0;
393 while (pnp) {
394 if (pnp->bev)
395 boot_add_bev(FLATPTR_TO_SEG(rom), pnp->bev, pnp->productname
396 , getRomPriority(sources, rom, instance++));
397 else if (pnp->bcv)
Kevin O'Connor031ef552010-12-27 19:26:57 -0500398 boot_add_bcv(FLATPTR_TO_SEG(rom), pnp->bcv, pnp->productname
399 , getRomPriority(sources, rom, instance++));
Kevin O'Connor1e157252012-01-14 11:55:35 -0500400 else
401 break;
402 pnp = get_pnp_next(rom, pnp);
Kevin O'Connor031ef552010-12-27 19:26:57 -0500403 }
Kevin O'Connor714325c2008-11-01 20:32:27 -0400404 }
405}
406
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500407
408/****************************************************************
409 * VGA init
410 ****************************************************************/
411
Kevin O'Connor8b0c5092011-07-05 20:50:32 -0400412static int S3ResumeVgaInit;
Kevin O'Connor422263d2011-07-05 20:56:07 -0400413int ScreenAndDebug;
Kevin O'Connor8b0c5092011-07-05 20:50:32 -0400414
Kevin O'Connor714325c2008-11-01 20:32:27 -0400415// Call into vga code to turn on console.
416void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500417vga_setup(void)
Kevin O'Connor714325c2008-11-01 20:32:27 -0400418{
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500419 if (! CONFIG_OPTIONROMS)
420 return;
421
Kevin O'Connor714325c2008-11-01 20:32:27 -0400422 dprintf(1, "Scan for VGA option rom\n");
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500423
Kevin O'Connor422263d2011-07-05 20:56:07 -0400424 // Load some config settings that impact VGA.
Kevin O'Connore010d852011-07-05 20:47:35 -0400425 EnforceChecksum = romfile_loadint("etc/optionroms-checksum", 1);
Gleb Natapova5abf9b2012-02-13 13:01:07 +0200426 S3ResumeVgaInit = romfile_loadint("etc/s3-resume-vga-init", !CONFIG_COREBOOT);
Kevin O'Connor422263d2011-07-05 20:56:07 -0400427 ScreenAndDebug = romfile_loadint("etc/screen-and-debug", 1);
Kevin O'Connore010d852011-07-05 20:47:35 -0400428
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500429 if (CONFIG_OPTIONROMS_DEPLOYED) {
430 // Option roms are already deployed on the system.
Kevin O'Connore7739302009-07-26 19:16:09 -0400431 init_optionrom((void*)BUILD_ROM_START, 0, 1);
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500432 } else {
Kevin O'Connore8264652010-09-15 22:06:19 -0400433 // Clear option rom memory
Kevin O'Connor8b9137d2011-08-03 20:15:26 -0400434 memset((void*)RomEnd, 0, max_rom() - RomEnd);
Kevin O'Connore8264652010-09-15 22:06:19 -0400435
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500436 // Find and deploy PCI VGA rom.
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400437 struct pci_device *pci;
438 foreachpci(pci) {
439 if (!is_pci_vga(pci))
440 continue;
Kevin O'Connorc1de91b2011-07-02 13:50:21 -0400441 vgahook_setup(pci);
Kevin O'Connor862d5fb2011-06-20 22:19:17 -0400442 init_pcirom(pci, 1, NULL);
443 break;
444 }
Kevin O'Connor09880da2009-06-17 20:35:41 -0400445
446 // Find and deploy CBFS vga-style roms not associated with a device.
Kevin O'Connorbca3a872010-12-24 14:42:42 -0500447 run_file_roms("vgaroms/", 1, NULL);
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400448 }
449
Kevin O'Connore7739302009-07-26 19:16:09 -0400450 if (RomEnd == BUILD_ROM_START) {
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400451 // No VGA rom found
Kevin O'Connore7739302009-07-26 19:16:09 -0400452 RomEnd += OPTION_ROM_ALIGN;
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400453 return;
Kevin O'Connorceea03c2008-11-08 21:36:35 -0500454 }
Kevin O'Connor714325c2008-11-01 20:32:27 -0400455
Kevin O'Connorafbed1b2010-06-28 07:34:53 -0400456 enable_vga_console();
Kevin O'Connor714325c2008-11-01 20:32:27 -0400457}
Kevin O'Connord282af72009-07-04 04:10:32 -0400458
459void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500460s3_resume_vga_init(void)
Kevin O'Connord282af72009-07-04 04:10:32 -0400461{
Kevin O'Connor8b0c5092011-07-05 20:50:32 -0400462 if (!S3ResumeVgaInit)
Kevin O'Connord282af72009-07-04 04:10:32 -0400463 return;
Kevin O'Connore7739302009-07-26 19:16:09 -0400464 struct rom_header *rom = (void*)BUILD_ROM_START;
Kevin O'Connord282af72009-07-04 04:10:32 -0400465 if (! is_valid_rom(rom))
466 return;
467 callrom(rom, 0);
468}