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Diffstat (limited to 'util/x86emu/yabel/device.c')
-rw-r--r--util/x86emu/yabel/device.c453
1 files changed, 0 insertions, 453 deletions
diff --git a/util/x86emu/yabel/device.c b/util/x86emu/yabel/device.c
deleted file mode 100644
index 7e71a45e97..0000000000
--- a/util/x86emu/yabel/device.c
+++ /dev/null
@@ -1,453 +0,0 @@
-/******************************************************************************
- * Copyright (c) 2004, 2008 IBM Corporation
- * Copyright (c) 2008, 2009 Pattrick Hueper <phueper@hueper.net>
- * All rights reserved.
- * This program and the accompanying materials
- * are made available under the terms of the BSD License
- * which accompanies this distribution, and is available at
- * http://www.opensource.org/licenses/bsd-license.php
- *
- * Contributors:
- * IBM Corporation - initial implementation
- *****************************************************************************/
-
-
-#include "device.h"
-#include "compat/rtas.h"
-#include <string.h>
-#include "debug.h"
-
-#include <device/device.h>
-#include <device/pci.h>
-#include <device/pci_ops.h>
-#include <device/resource.h>
-
-/* the device we are working with... */
-biosemu_device_t bios_device;
-//max. 6 BARs and 1 Exp.ROM plus CfgSpace and 3 legacy ranges
-translate_address_t translate_address_array[11];
-u8 taa_last_entry;
-
-typedef struct {
- u8 info;
- u8 bus;
- u8 devfn;
- u8 cfg_space_offset;
- u64 address;
- u64 size;
-} __attribute__ ((__packed__)) assigned_address_t;
-
-#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL
-/* coreboot version */
-
-static void
-biosemu_dev_get_addr_info(void)
-{
- int taa_index = 0;
- int i = 0;
- struct resource *r;
- u8 bus = bios_device.dev->bus->link;
- u16 devfn = bios_device.dev->path.pci.devfn;
-
- bios_device.bus = bus;
- bios_device.devfn = devfn;
-
- DEBUG_PRINTF("bus: %x, devfn: %x\n", bus, devfn);
- for (i = 0; i < bios_device.dev->resources; i++) {
- r = &bios_device.dev->resource[i];
- translate_address_array[taa_index].info = r->flags;
- translate_address_array[taa_index].bus = bus;
- translate_address_array[taa_index].devfn = devfn;
- translate_address_array[taa_index].cfg_space_offset =
- r->index;
- translate_address_array[taa_index].address = r->base;
- translate_address_array[taa_index].size = r->size;
- /* dont translate addresses... all addresses are 1:1 */
- translate_address_array[taa_index].address_offset = 0;
- taa_index++;
- }
- /* Expansion ROM */
- translate_address_array[taa_index].info = IORESOURCE_MEM | IORESOURCE_READONLY;
- translate_address_array[taa_index].bus = bus;
- translate_address_array[taa_index].devfn = devfn;
- translate_address_array[taa_index].cfg_space_offset = 0x30;
- translate_address_array[taa_index].address = bios_device.img_addr;
- translate_address_array[taa_index].size = 0; /* TODO: do we need the size? */
- /* dont translate addresses... all addresses are 1:1 */
- translate_address_array[taa_index].address_offset = 0;
- taa_index++;
- /* legacy ranges if its a VGA card... */
- if ((bios_device.dev->class & 0xFF0000) == 0x030000) {
- DEBUG_PRINTF("%s: VGA device found, adding legacy resources... \n", __func__);
- /* I/O 0x3B0-0x3BB */
- translate_address_array[taa_index].info = IORESOURCE_FIXED | IORESOURCE_IO;
- translate_address_array[taa_index].bus = bus;
- translate_address_array[taa_index].devfn = devfn;
- translate_address_array[taa_index].cfg_space_offset = 0;
- translate_address_array[taa_index].address = 0x3b0;
- translate_address_array[taa_index].size = 0xc;
- /* dont translate addresses... all addresses are 1:1 */
- translate_address_array[taa_index].address_offset = 0;
- taa_index++;
- /* I/O 0x3C0-0x3DF */
- translate_address_array[taa_index].info = IORESOURCE_FIXED | IORESOURCE_IO;
- translate_address_array[taa_index].bus = bus;
- translate_address_array[taa_index].devfn = devfn;
- translate_address_array[taa_index].cfg_space_offset = 0;
- translate_address_array[taa_index].address = 0x3c0;
- translate_address_array[taa_index].size = 0x20;
- /* dont translate addresses... all addresses are 1:1 */
- translate_address_array[taa_index].address_offset = 0;
- taa_index++;
- /* Mem 0xA0000-0xBFFFF */
- translate_address_array[taa_index].info = IORESOURCE_FIXED | IORESOURCE_MEM;
- translate_address_array[taa_index].bus = bus;
- translate_address_array[taa_index].devfn = devfn;
- translate_address_array[taa_index].cfg_space_offset = 0;
- translate_address_array[taa_index].address = 0xa0000;
- translate_address_array[taa_index].size = 0x20000;
- /* dont translate addresses... all addresses are 1:1 */
- translate_address_array[taa_index].address_offset = 0;
- taa_index++;
- }
- // store last entry index of translate_address_array
- taa_last_entry = taa_index - 1;
-#if defined(CONFIG_X86EMU_DEBUG) && CONFIG_X86EMU_DEBUG
- //dump translate_address_array
- printf("translate_address_array: \n");
- translate_address_t ta;
- for (i = 0; i <= taa_last_entry; i++) {
- ta = translate_address_array[i];
- printf
- ("%d: info: %08lx bus: %02x devfn: %02x cfg_space_offset: %02x\n\taddr: %016llx\n\toffs: %016llx\n\tsize: %016llx\n",
- i, ta.info, ta.bus, ta.devfn, ta.cfg_space_offset,
- ta.address, ta.address_offset, ta.size);
- }
-#endif
-}
-#else
-// use translate_address_dev and get_puid from net-snk's net_support.c
-void translate_address_dev(u64 *, phandle_t);
-u64 get_puid(phandle_t node);
-
-
-// scan all adresses assigned to the device ("assigned-addresses" and "reg")
-// store in translate_address_array for faster translation using dev_translate_address
-void
-biosemu_dev_get_addr_info(void)
-{
- // get bus/dev/fn from assigned-addresses
- int32_t len;
- //max. 6 BARs and 1 Exp.ROM plus CfgSpace and 3 legacy ranges
- assigned_address_t buf[11];
- len =
- of_getprop(bios_device.phandle, "assigned-addresses", buf,
- sizeof(buf));
- bios_device.bus = buf[0].bus;
- bios_device.devfn = buf[0].devfn;
- DEBUG_PRINTF("bus: %x, devfn: %x\n", bios_device.bus,
- bios_device.devfn);
- //store address translations for all assigned-addresses and regs in
- //translate_address_array for faster translation later on...
- int i = 0;
- // index to insert data into translate_address_array
- int taa_index = 0;
- u64 address_offset;
- for (i = 0; i < (len / sizeof(assigned_address_t)); i++, taa_index++) {
- //copy all info stored in assigned-addresses
- translate_address_array[taa_index].info = buf[i].info;
- translate_address_array[taa_index].bus = buf[i].bus;
- translate_address_array[taa_index].devfn = buf[i].devfn;
- translate_address_array[taa_index].cfg_space_offset =
- buf[i].cfg_space_offset;
- translate_address_array[taa_index].address = buf[i].address;
- translate_address_array[taa_index].size = buf[i].size;
- // translate first address and store it as address_offset
- address_offset = buf[i].address;
- translate_address_dev(&address_offset, bios_device.phandle);
- translate_address_array[taa_index].address_offset =
- address_offset - buf[i].address;
- }
- //get "reg" property
- len = of_getprop(bios_device.phandle, "reg", buf, sizeof(buf));
- for (i = 0; i < (len / sizeof(assigned_address_t)); i++) {
- if ((buf[i].size == 0) || (buf[i].cfg_space_offset != 0)) {
- // we dont care for ranges with size 0 and
- // BARs and Expansion ROM must be in assigned-addresses... so in reg
- // we only look for those without config space offset set...
- // i.e. the legacy ranges
- continue;
- }
- //copy all info stored in assigned-addresses
- translate_address_array[taa_index].info = buf[i].info;
- translate_address_array[taa_index].bus = buf[i].bus;
- translate_address_array[taa_index].devfn = buf[i].devfn;
- translate_address_array[taa_index].cfg_space_offset =
- buf[i].cfg_space_offset;
- translate_address_array[taa_index].address = buf[i].address;
- translate_address_array[taa_index].size = buf[i].size;
- // translate first address and store it as address_offset
- address_offset = buf[i].address;
- translate_address_dev(&address_offset, bios_device.phandle);
- translate_address_array[taa_index].address_offset =
- address_offset - buf[i].address;
- taa_index++;
- }
- // store last entry index of translate_address_array
- taa_last_entry = taa_index - 1;
-#if defined(CONFIG_X86EMU_DEBUG) && CONFIG_X86EMU_DEBUG
- //dump translate_address_array
- printf("translate_address_array: \n");
- translate_address_t ta;
- for (i = 0; i <= taa_last_entry; i++) {
- ta = translate_address_array[i];
- printf
- ("%d: %02x%02x%02x%02x\n\taddr: %016llx\n\toffs: %016llx\n\tsize: %016llx\n",
- i, ta.info, ta.bus, ta.devfn, ta.cfg_space_offset,
- ta.address, ta.address_offset, ta.size);
- }
-#endif
-}
-#endif
-
-#ifndef CONFIG_PCI_OPTION_ROM_RUN_YABEL
-// to simulate accesses to legacy VGA Memory (0xA0000-0xBFFFF)
-// we look for the first prefetchable memory BAR, if no prefetchable BAR found,
-// we use the first memory BAR
-// dev_translate_addr will translate accesses to the legacy VGA Memory into the found vmem BAR
-static void
-biosemu_dev_find_vmem_addr(void)
-{
- int i = 0;
- translate_address_t ta;
- s8 tai_np = -1, tai_p = -1; // translate_address_array index for non-prefetchable and prefetchable memory
- //search backwards to find first entry
- for (i = taa_last_entry; i >= 0; i--) {
- ta = translate_address_array[i];
- if ((ta.cfg_space_offset >= 0x10)
- && (ta.cfg_space_offset <= 0x24)) {
- //only BARs
- if ((ta.info & 0x03) >= 0x02) {
- //32/64bit memory
- tai_np = i;
- if ((ta.info & 0x40) != 0) {
- // prefetchable
- tai_p = i;
- }
- }
- }
- }
- if (tai_p != -1) {
- ta = translate_address_array[tai_p];
- bios_device.vmem_addr = ta.address;
- bios_device.vmem_size = ta.size;
- DEBUG_PRINTF
- ("%s: Found prefetchable Virtual Legacy Memory BAR: %llx, size: %llx\n",
- __func__, bios_device.vmem_addr,
- bios_device.vmem_size);
- } else if (tai_np != -1) {
- ta = translate_address_array[tai_np];
- bios_device.vmem_addr = ta.address;
- bios_device.vmem_size = ta.size;
- DEBUG_PRINTF
- ("%s: Found non-prefetchable Virtual Legacy Memory BAR: %llx, size: %llx",
- __func__, bios_device.vmem_addr,
- bios_device.vmem_size);
- }
- // disable vmem
- //bios_device.vmem_size = 0;
-}
-
-void
-biosemu_dev_get_puid(void)
-{
- // get puid
- bios_device.puid = get_puid(bios_device.phandle);
- DEBUG_PRINTF("puid: 0x%llx\n", bios_device.puid);
-}
-#endif
-
-static void
-biosemu_dev_get_device_vendor_id(void)
-{
-
- u32 pci_config_0;
-#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL
- pci_config_0 = pci_read_config32(bios_device.dev, 0x0);
-#else
- pci_config_0 =
- rtas_pci_config_read(bios_device.puid, 4, bios_device.bus,
- bios_device.devfn, 0x0);
-#endif
- bios_device.pci_device_id =
- (u16) ((pci_config_0 & 0xFFFF0000) >> 16);
- bios_device.pci_vendor_id = (u16) (pci_config_0 & 0x0000FFFF);
- DEBUG_PRINTF("PCI Device ID: %04x, PCI Vendor ID: %x\n",
- bios_device.pci_device_id, bios_device.pci_vendor_id);
-}
-
-/* Check whether the device has a valid Expansion ROM and search the PCI Data
- * Structure and any Expansion ROM Header (using dev_scan_exp_header()) for
- * needed information. If the rom_addr parameter is != 0, it is the address of
- * the Expansion ROM image and will be used, if it is == 0, the Expansion ROM
- * BAR address will be used.
- */
-u8
-biosemu_dev_check_exprom(unsigned long rom_base_addr)
-{
- int i = 0;
- translate_address_t ta;
- u16 pci_ds_offset;
- pci_data_struct_t pci_ds;
- if (rom_base_addr == 0) {
- // check for ExpROM Address (Offset 30) in taa
- for (i = 0; i <= taa_last_entry; i++) {
- ta = translate_address_array[i];
- if (ta.cfg_space_offset == 0x30) {
- //translated address
- rom_base_addr = ta.address + ta.address_offset;
- break;
- }
- }
- }
- /* In the ROM there could be multiple Expansion ROM Images... start
- * searching them for an x86 image.
- */
- do {
- if (rom_base_addr == 0) {
- printf("Error: no Expansion ROM address found!\n");
- return -1;
- }
- set_ci();
- u16 rom_signature = in16le((void *) rom_base_addr);
- clr_ci();
- if (rom_signature != 0xaa55) {
- printf
- ("Error: invalid Expansion ROM signature: %02x!\n",
- *((u16 *) rom_base_addr));
- return -1;
- }
- set_ci();
- // at offset 0x18 is the (16bit little-endian) pointer to the PCI Data Structure
- pci_ds_offset = in16le((void *) (rom_base_addr + 0x18));
- //copy the PCI Data Structure
- memcpy(&pci_ds, (void *) (rom_base_addr + pci_ds_offset),
- sizeof(pci_ds));
- clr_ci();
-#if defined(CONFIG_X86EMU_DEBUG) && CONFIG_X86EMU_DEBUG
- DEBUG_PRINTF("PCI Data Structure @%lx:\n",
- rom_base_addr + pci_ds_offset);
- dump((void *) &pci_ds, sizeof(pci_ds));
-#endif
- if (strncmp((const char *) pci_ds.signature, "PCIR", 4) != 0) {
- printf("Invalid PCI Data Structure found!\n");
- break;
- }
- //little-endian conversion
- pci_ds.vendor_id = in16le(&pci_ds.vendor_id);
- pci_ds.device_id = in16le(&pci_ds.device_id);
- pci_ds.img_length = in16le(&pci_ds.img_length);
- pci_ds.pci_ds_length = in16le(&pci_ds.pci_ds_length);
- if (pci_ds.vendor_id != bios_device.pci_vendor_id) {
- printf
- ("Image has invalid Vendor ID: %04x, expected: %04x\n",
- pci_ds.vendor_id, bios_device.pci_vendor_id);
- break;
- }
- if (pci_ds.device_id != bios_device.pci_device_id) {
- printf
- ("Image has invalid Device ID: %04x, expected: %04x\n",
- pci_ds.device_id, bios_device.pci_device_id);
- break;
- }
- DEBUG_PRINTF("Image Length: %d\n", pci_ds.img_length * 512);
- DEBUG_PRINTF("Image Code Type: %d\n", pci_ds.code_type);
- if (pci_ds.code_type == 0) {
- //x86 image
- //store image address and image length in bios_device struct
- bios_device.img_addr = rom_base_addr;
- bios_device.img_size = pci_ds.img_length * 512;
- // we found the image, exit the loop
- break;
- } else {
- // no x86 image, check next image (if any)
- rom_base_addr += pci_ds.img_length * 512;
- }
- if ((pci_ds.indicator & 0x80) == 0x80) {
- //last image found, exit the loop
- DEBUG_PRINTF("Last PCI Expansion ROM Image found.\n");
- break;
- }
- }
- while (bios_device.img_addr == 0);
- // in case we did not find a valid x86 Expansion ROM Image
- if (bios_device.img_addr == 0) {
- printf("Error: no valid x86 Expansion ROM Image found!\n");
- return -1;
- }
- return 0;
-}
-
-u8
-biosemu_dev_init(struct device * device)
-{
- u8 rval = 0;
- //init bios_device struct
- DEBUG_PRINTF("%s\n", __func__);
- memset(&bios_device, 0, sizeof(bios_device));
-
-#ifndef CONFIG_PCI_OPTION_ROM_RUN_YABEL
- bios_device.ihandle = of_open(device_name);
- if (bios_device.ihandle == 0) {
- DEBUG_PRINTF("%s is no valid device!\n", device_name);
- return -1;
- }
- bios_device.phandle = of_finddevice(device_name);
-#else
- bios_device.dev = device;
-#endif
- biosemu_dev_get_addr_info();
-#ifndef CONFIG_PCI_OPTION_ROM_RUN_YABEL
- biosemu_dev_find_vmem_addr();
- biosemu_dev_get_puid();
-#endif
- biosemu_dev_get_device_vendor_id();
- return rval;
-}
-
-// translate address function using translate_address_array assembled
-// by dev_get_addr_info... MUCH faster than calling translate_address_dev
-// and accessing client interface for every translation...
-// returns: 0 if addr not found in translate_address_array, 1 if found.
-u8
-biosemu_dev_translate_address(unsigned long * addr)
-{
- int i = 0;
- translate_address_t ta;
-#ifndef CONFIG_PCI_OPTION_ROM_RUN_YABEL
- /* we dont need this hack for coreboot... we can access legacy areas */
- //check if it is an access to legacy VGA Mem... if it is, map the address
- //to the vmem BAR and then translate it...
- // (translation info provided by Ben Herrenschmidt)
- // NOTE: the translation seems to only work for NVIDIA cards... but it is needed
- // to make some NVIDIA cards work at all...
- if ((bios_device.vmem_size > 0)
- && ((*addr >= 0xA0000) && (*addr < 0xB8000))) {
- *addr = (*addr - 0xA0000) * 4 + 2 + bios_device.vmem_addr;
- }
- if ((bios_device.vmem_size > 0)
- && ((*addr >= 0xB8000) && (*addr < 0xC0000))) {
- u8 shift = *addr & 1;
- *addr &= 0xfffffffe;
- *addr = (*addr - 0xB8000) * 4 + shift + bios_device.vmem_addr;
- }
-#endif
- for (i = 0; i <= taa_last_entry; i++) {
- ta = translate_address_array[i];
- if ((*addr >= ta.address) && (*addr <= (ta.address + ta.size))) {
- *addr += ta.address_offset;
- return 1;
- }
- }
- return 0;
-}
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