c0c951630a
We can use `decode_pcie_bar` instead, if we make it non-static. Change-Id: I4d005290355e30e6fdaae3e8e092891fddfbe4fc Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44118 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <types.h>
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#include <commonlib/helpers.h>
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#include <console/console.h>
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#include <acpi/acpi.h>
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#include <acpi/acpigen.h>
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#include <device/device.h>
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#include <device/pci_def.h>
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#include <device/pci_ops.h>
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#include "gm45.h"
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unsigned long acpi_fill_mcfg(unsigned long current)
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{
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u32 length, pciexbar;
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if (!decode_pcie_bar(&pciexbar, &length))
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return current;
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const int max_buses = length / MiB;
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current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current,
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pciexbar, 0x0, 0x0, max_buses - 1);
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return current;
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}
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static unsigned long acpi_fill_dmar(unsigned long current)
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{
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const struct device *dev;
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dev = pcidev_on_root(3, 0);
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int me_active = dev && dev->enabled;
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dev = pcidev_on_root(2, 0);
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int igd_active = dev && dev->enabled;
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int stepping = pci_read_config8(pcidev_on_root(0, 0),
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PCI_CLASS_REVISION);
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unsigned long tmp = current;
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current += acpi_create_dmar_drhd(current, 0, 0, IOMMU_BASE1);
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current += acpi_create_dmar_ds_pci(current, 0, 0x1b, 0);
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acpi_dmar_drhd_fixup(tmp, current);
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if (stepping != STEPPING_B2 && igd_active) {
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tmp = current;
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current += acpi_create_dmar_drhd(current, 0, 0, IOMMU_BASE2);
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current += acpi_create_dmar_ds_pci(current, 0, 0x2, 0);
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current += acpi_create_dmar_ds_pci(current, 0, 0x2, 1);
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acpi_dmar_drhd_fixup(tmp, current);
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}
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if (me_active) {
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tmp = current;
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current += acpi_create_dmar_drhd(current, 0, 0, IOMMU_BASE3);
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current += acpi_create_dmar_ds_pci(current, 0, 0x3, 0);
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current += acpi_create_dmar_ds_pci(current, 0, 0x3, 1);
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current += acpi_create_dmar_ds_pci(current, 0, 0x3, 2);
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current += acpi_create_dmar_ds_pci(current, 0, 0x3, 3);
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acpi_dmar_drhd_fixup(tmp, current);
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}
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current += acpi_create_dmar_drhd(current, DRHD_INCLUDE_PCI_ALL, 0, IOMMU_BASE4);
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/* TODO: reserve GTT for 0.2.0 and 0.2.1? */
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return current;
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}
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unsigned long northbridge_write_acpi_tables(const struct device *device,
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unsigned long start,
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struct acpi_rsdp *rsdp)
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{
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unsigned long current;
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acpi_dmar_t *dmar;
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current = start;
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printk(BIOS_DEBUG, "ACPI: * DMAR\n");
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dmar = (acpi_dmar_t *) current;
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acpi_create_dmar(dmar, 0, acpi_fill_dmar);
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current += dmar->header.length;
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current = acpi_align_current(current);
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acpi_add_table(rsdp, dmar);
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current = acpi_align_current(current);
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printk(BIOS_DEBUG, "current = %lx\n", current);
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return current;
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}
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