45a0dbc95c
Move header and delete duplicates. Change-Id: I0e1f5d9082626062f95afe718f6ec62a68f0d828 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/18903 Tested-by: build bot (Jenkins) Tested-by: coreboot org <coreboot.org@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2013, 2014 Vladimir Serbinenko
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* Copyright (C) 2017 secunet Security Networks AG
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 or (at your option)
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* any later version of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <arch/io.h>
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#include <console/console.h>
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#include <delay.h>
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#include <device/device.h>
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#include <string.h>
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#include <device/pci.h>
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#include <drivers/intel/gma/opregion.h>
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#include "i915.h"
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#include "intel_bios.h"
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static size_t generate_vbt(const struct i915_gpu_controller_info *const conf,
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struct vbt_header *const head,
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const char *const idstr)
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{
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u8 *ptr;
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memset(head, 0, sizeof (*head));
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memset(head->signature, ' ', sizeof (head->signature));
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memcpy(head->signature, idstr,
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MIN(strlen(idstr), sizeof (head->signature)));
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head->version = 100;
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head->header_size = sizeof (*head);
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head->bdb_offset = sizeof (*head);
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struct bdb_header *const bdb_head = (struct bdb_header *)(head + 1);
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memset(bdb_head, 0, sizeof (*bdb_head));
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memcpy(bdb_head->signature, "BIOS_DATA_BLOCK ", 16);
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bdb_head->version = 0xa8;
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bdb_head->header_size = sizeof (*bdb_head);
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ptr = (u8 *)(bdb_head + 1);
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ptr[0] = BDB_GENERAL_FEATURES;
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ptr[1] = sizeof (struct bdb_general_features);
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ptr[2] = sizeof (struct bdb_general_features) >> 8;
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ptr += 3;
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struct bdb_general_features *const genfeat =
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(struct bdb_general_features *)ptr;
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memset(genfeat, 0, sizeof (*genfeat));
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genfeat->panel_fitting = 3;
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genfeat->flexaim = 1;
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genfeat->download_ext_vbt = 1;
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genfeat->enable_ssc = conf->use_spread_spectrum_clock;
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genfeat->ssc_freq = IS_ENABLED(CONFIG_INTEL_GMA_SSC_ALTERNATE_REF);
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genfeat->rsvd10 = 0x4;
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genfeat->legacy_monitor_detect = 1;
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genfeat->int_crt_support = 1;
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genfeat->dp_ssc_enb = 1;
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ptr += sizeof (*genfeat);
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bdb_head->bdb_size = ptr - (u8 *)bdb_head;
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head->vbt_size = ptr - (u8 *)head;
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head->vbt_checksum = 0;
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return ptr - (u8 *)head;
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}
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void
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generate_fake_intel_oprom(const struct i915_gpu_controller_info *const conf,
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struct device *const dev, const char *const idstr)
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{
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optionrom_header_t *const oh = (void *)PCI_VGA_RAM_IMAGE_START;
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memset(oh, 0, 8192);
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oh->signature = PCI_ROM_HDR;
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oh->pcir_offset = 0x40;
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oh->vbt_offset = 0x80;
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optionrom_pcir_t *const pcir = (void *)((u8 *)oh + oh->pcir_offset);
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pcir->signature = 0x52494350; // PCIR
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pcir->vendor = dev->vendor;
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pcir->device = dev->device;
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pcir->length = sizeof(*pcir);
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pcir->revision = pci_read_config8(dev, PCI_CLASS_REVISION);
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pcir->classcode[0] = dev->class;
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pcir->classcode[1] = dev->class >> 8;
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pcir->classcode[2] = dev->class >> 16;
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pcir->indicator = 0x80;
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const size_t vbt_size =
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generate_vbt(conf, (void *)((u8 *)oh + oh->vbt_offset), idstr);
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const size_t fake_oprom_size =
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DIV_ROUND_UP(oh->vbt_offset + vbt_size, 512);
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oh->size = fake_oprom_size;
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pcir->imagelength = fake_oprom_size;
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}
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