northbridge.c File Reference

#include <cpu/cpu.h>
#include <console/console.h>
#include <acpi/acpi.h>
#include <acpi/acpigen.h>
#include <commonlib/helpers.h>
#include <device/pci_ops.h>
#include <delay.h>
#include <cpu/intel/model_206ax/model_206ax.h>
#include <cpu/x86/msr.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <types.h>
#include "chip.h"
#include "sandybridge.h"
#include <cpu/intel/smm_reloc.h>
#include <security/intel/txt/txt_platform.h>

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Functions
bool	is_sandybridge (void)
static const char *	northbridge_acpi_name (const struct device *dev)
static void	add_fixed_resources (struct device *dev, int index)
static uint64_t	get_touud (const struct device *dev)
static void	mc_read_resources (struct device *dev)
static void	northbridge_dmi_init (struct device *dev)
static void	disable_peg (void)
static void	northbridge_init (struct device *dev)
void	northbridge_write_smram (u8 smram)
static void	set_above_4g_pci (const struct device *dev)
static void	mc_gen_ssdt (const struct device *dev)
static void	enable_dev (struct device *dev)

Variables
static uint64_t	uma_memory_base = 0
static uint64_t	uma_memory_size = 0
static const int	legacy_hole_base_k = 0xa0000 / 1024
static const int	legacy_hole_size_k = 384
static struct device_operations	pci_domain_ops
static struct device_operations	mc_ops
static const unsigned short	pci_device_ids []
static const struct pci_driver mc_driver	__pci_driver
static struct device_operations	cpu_bus_ops
struct chip_operations	northbridge_intel_sandybridge_ops

Function Documentation

add_fixed_resources()

static void add_fixed_resources ( struct device *  dev, int  index  )

static

Definition at line 65 of file northbridge.c.

References bad_ram_resource, CAPID0_A, GFXVT_BASE, is_sandybridge(), legacy_hole_base_k, mmio_resource, pci_read_config32(), reserved_ram_resource, uma_memory_base, uma_memory_size, and VTVC0_BASE.

Referenced by mc_read_resources().

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disable_peg()

static void disable_peg ( void  )

static

Definition at line 269 of file northbridge.c.

References BIOS_DEBUG, DEVEN, DEVEN_D4EN, DEVEN_D7EN, DEVEN_IGD, DEVEN_PEG10, DEVEN_PEG11, DEVEN_PEG12, DEVEN_PEG60, device::enabled, mchbar_clrbits32, mchbar_setbits32, pci_read_config32(), pci_write_config32(), pcidev_on_root(), PEGCTL, and printk.

Referenced by northbridge_init().

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enable_dev()

static void enable_dev ( struct device *  dev )

static

Definition at line 429 of file northbridge.c.

References cpu_bus_ops, DEVICE_PATH_CPU_CLUSTER, DEVICE_PATH_DOMAIN, device::ops, device::path, pci_domain_ops, and device_path::type.

get_touud()

static uint64_t get_touud ( const struct device *  dev )

static

Definition at line 87 of file northbridge.c.

References pci_read_config32(), and TOUUD.

Referenced by mc_read_resources(), and set_above_4g_pci().

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is_sandybridge()

bool is_sandybridge

(

void

)

Definition at line 25 of file northbridge.c.

References BASE_REV_MASK, BASE_REV_SNB, PCI_DEVICE_ID, pci_read_config16(), and pcidev_on_root().

Referenced by add_fixed_resources(), gma_pm_init_post_vbios(), gma_pm_init_pre_vbios(), northbridge_dmi_init(), and northbridge_init().

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mc_gen_ssdt()

static void mc_gen_ssdt ( const struct device *  dev )

static

Definition at line 396 of file northbridge.c.

References generate_cpu_entries(), and set_above_4g_pci().

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mc_read_resources()

static void mc_read_resources ( struct device *  dev )

static

Definition at line 95 of file northbridge.c.

References add_fixed_resources(), BIOS_DEBUG, BIOS_INFO, dpr_register::epm, get_touud(), GGC, KiB, legacy_hole_base_k, legacy_hole_size_k, MESEG_BASE, MiB, mmconf_resource(), pci_dev_read_resources(), pci_read_config16(), pci_read_config32(), PCIEXBAR, printk, ram_resource, reserved_ram_resource, dpr_register::size, TOLUD, TOM, TSEGMB, txt_get_chipset_dpr(), uma_memory_base, and uma_memory_size.

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northbridge_acpi_name()

static const char* northbridge_acpi_name ( const struct device *  dev )

static

Definition at line 41 of file northbridge.c.

References pci_path::devfn, DEVICE_PATH_DOMAIN, DEVICE_PATH_PCI, NULL, device::path, device_path::pci, PCI_DEVFN, and device_path::type.

northbridge_dmi_init()

static void northbridge_dmi_init ( struct device *  dev )

static

Definition at line 227 of file northbridge.c.

References cpu_stepping(), dmibar_clrsetbits32(), dmibar_setbits32, dmibar_write32(), DMICESTS, DMILCTL, DMILLTC, DMIUESTS, is_sandybridge(), SNB_STEP_C0, SNB_STEP_D0, SNB_STEP_D1, and stepping.

Referenced by northbridge_init().

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northbridge_init()

static void northbridge_init ( struct device *  dev )

static

Definition at line 329 of file northbridge.c.

References BIOS_DEBUG, BIOS_RESET_CPL, cpu_config_tdp_levels(), disable_peg(), msr_struct::hi, INTRDIRCTL, is_sandybridge(), msr_struct::lo, MCH_PKG_POWER_LIMIT_HI, MCH_PKG_POWER_LIMIT_LO, mchbar_clrsetbits8(), mchbar_read32(), mchbar_setbits8, mchbar_write32(), mdelay(), MSR_PKG_POWER_LIMIT, northbridge_dmi_init(), PAVP_MSG, printk, rdmsr(), SAPMTIMERS, and set_power_limits().

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northbridge_write_smram()

void northbridge_write_smram

(

u8

smram

)

Definition at line 378 of file northbridge.c.

References pci_write_config8(), pcidev_on_root(), and SMRAM.

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set_above_4g_pci()

static void set_above_4g_pci ( const struct device *  dev )

static

Definition at line 383 of file northbridge.c.

References acpigen_pop_len(), acpigen_write_name_qword(), acpigen_write_scope(), BIOS_DEBUG, cpu_phys_address_size(), get_touud(), POWER_OF_2, and printk.

Referenced by mc_gen_ssdt().

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Variable Documentation

__pci_driver

const struct pci_driver mc_driver __pci_driver

static

Initial value:

= {
        .ops     = &mc_ops,
        .vendor  = PCI_VID_INTEL,
        .devices = pci_device_ids,
}

Definition at line 411 of file northbridge.c.

cpu_bus_ops

struct device_operations cpu_bus_ops

static

Initial value:

= {
        .read_resources   = noop_read_resources,
        .set_resources    = noop_set_resources,
        .init             = mp_cpu_bus_init,
}

Definition at line 411 of file northbridge.c.

Referenced by enable_dev().

legacy_hole_base_k

const int legacy_hole_base_k = 0xa0000 / 1024

static

Definition at line 38 of file northbridge.c.

Referenced by add_fixed_resources(), and mc_read_resources().

legacy_hole_size_k

const int legacy_hole_size_k = 384

static

Definition at line 39 of file northbridge.c.

Referenced by mc_read_resources().

mc_ops

struct device_operations mc_ops

static

Initial value:

= {
        .read_resources         = mc_read_resources,
        .set_resources          = pci_dev_set_resources,
        .enable_resources       = pci_dev_enable_resources,
        .init                   = northbridge_init,
        .ops_pci                = &pci_dev_ops_pci,
        .acpi_fill_ssdt         = mc_gen_ssdt,
}

Definition at line 396 of file northbridge.c.

northbridge_intel_sandybridge_ops

struct chip_operations northbridge_intel_sandybridge_ops

Initial value:

= {
 
        .enable_dev = enable_dev,
}

Definition at line 429 of file northbridge.c.

pci_device_ids

const unsigned short pci_device_ids[]

static

Initial value:

= {
        0x0100, 0x0104, 0x0108,         
        0x0150, 0x0154, 0x0158,         
        0
}

Definition at line 411 of file northbridge.c.

pci_domain_ops

struct device_operations pci_domain_ops

static

Initial value:

= {
        .read_resources    = pci_domain_read_resources,
        .set_resources     = pci_domain_set_resources,
        .scan_bus          = pci_domain_scan_bus,
        .write_acpi_tables = northbridge_write_acpi_tables,
        .acpi_name         = northbridge_acpi_name,
}

Definition at line 41 of file northbridge.c.

Referenced by enable_dev().

uma_memory_base

uint64_t uma_memory_base = 0

static

Definition at line 22 of file northbridge.c.

Referenced by add_fixed_resources(), mc_read_resources(), and mch_domain_read_resources().

uma_memory_size

uint64_t uma_memory_size = 0

static

Definition at line 23 of file northbridge.c.

Referenced by add_fixed_resources(), mc_read_resources(), and mch_domain_read_resources().