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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 Intel Corp.
* (Written by Andrey Petrov <andrey.petrov@intel.com> for Intel Corp.)
* (Written by Alexandru Gagniuc <alexandrux.gagniuc@intel.com> for Intel Corp.)
* Copyright (C) 2019 Siemens AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <cpu/cpu.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci_ops.h>
#include <fsp/util.h>
#include <intelblocks/systemagent.h>
#include <soc/iomap.h>
#include <soc/systemagent.h>
/*
* SoC implementation
*
* Add all known fixed memory ranges for Host Controller/Memory
* controller.
*/
void soc_add_fixed_mmio_resources(struct device *dev, int *index)
{
static const struct sa_mmio_descriptor soc_fixed_resources[] = {
{ PCIEXBAR, CONFIG_MMCONF_BASE_ADDRESS, CONFIG_SA_PCIEX_LENGTH,
"PCIEXBAR" },
{ MCHBAR, MCH_BASE_ADDRESS, MCH_BASE_SIZE, "MCHBAR" },
};
sa_add_fixed_mmio_resources(dev, index, soc_fixed_resources,
ARRAY_SIZE(soc_fixed_resources));
/* Add VTd resources if VTd is enabled. These resources were
set up by the FSP-S call. */
if ((pci_read_config32(dev, CAPID0_A) & VTD_DISABLE))
return;
if (MCHBAR32(GFXVTBAR) & VTBAR_ENABLED) {
mmio_resource(dev, *index,
(MCHBAR64(GFXVTBAR) & VTBAR_MASK) / KiB,
VTBAR_SIZE / KiB);
(*index)++;
}
if (MCHBAR32(DEFVTBAR) & VTBAR_ENABLED) {
mmio_resource(dev, *index,
(MCHBAR64(DEFVTBAR) & VTBAR_MASK) / KiB,
VTBAR_SIZE / KiB);
(*index)++;
}
}
int soc_get_uncore_prmmr_base_and_mask(uint64_t *prmrr_base,
uint64_t *prmrr_mask)
{
const void *hob;
size_t hob_size, prmrr_size;
uint64_t phys_address_mask;
const uint8_t prmrr_phys_base_guid[16] = {
0x38, 0x3a, 0x81, 0x9f, 0xb0, 0x6f, 0xa7, 0x4f,
0xaf, 0x79, 0x8a, 0x4e, 0x74, 0xdd, 0x48, 0x33
};
const uint8_t prmrr_size_guid[16] = {
0x44, 0xed, 0x0b, 0x99, 0x4e, 0x9b, 0x26, 0x42,
0xa5, 0x97, 0x28, 0x36, 0x76, 0x6b, 0x5c, 0x41
};
hob = fsp_find_extension_hob_by_guid(prmrr_phys_base_guid,
&hob_size);
if (!hob) {
printk(BIOS_ERR, "Failed to locate PRMRR base hob\n");
return -1;
}
if (hob_size != sizeof(uint64_t)) {
printk(BIOS_ERR, "Incorrect PRMRR base hob size\n");
return -1;
}
*prmrr_base = *(uint64_t *) hob;
hob = fsp_find_extension_hob_by_guid(prmrr_size_guid,
&hob_size);
if (!hob) {
printk(BIOS_ERR, "Failed to locate PRMRR size hob\n");
return -1;
}
if (hob_size != sizeof(uint64_t)) {
printk(BIOS_ERR, "Incorrect PRMRR base hob size\n");
return -1;
}
prmrr_size = *(uint64_t *) hob;
phys_address_mask = (1ULL << cpu_phys_address_size()) - 1;
*prmrr_mask = phys_address_mask & ~(uint64_t)(prmrr_size - 1);
return 0;
}
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