cpu/amd: Add initial support for AMD Socket G34 processors

Change-Id: Iccd034f32c26513edd52ca3a11a30f61c362682d
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11940
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
This commit is contained in:
Timothy Pearson 2015-09-05 17:50:29 -05:00 committed by Jonathan A. Kollasch
parent 1fec04b47e
commit 1c4508e77c
14 changed files with 418 additions and 45 deletions

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@ -5,6 +5,7 @@ source src/cpu/amd/socket_AM2/Kconfig
source src/cpu/amd/socket_AM2r2/Kconfig
source src/cpu/amd/socket_AM3/Kconfig
source src/cpu/amd/socket_C32/Kconfig
source src/cpu/amd/socket_G34/Kconfig
source src/cpu/amd/socket_ASB2/Kconfig
source src/cpu/amd/socket_F/Kconfig
source src/cpu/amd/socket_F_1207/Kconfig

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@ -8,6 +8,7 @@ subdirs-$(CONFIG_CPU_AMD_SOCKET_AM2R2) += socket_AM2r2
subdirs-$(CONFIG_CPU_AMD_SOCKET_AM3) += socket_AM3
subdirs-$(CONFIG_CPU_AMD_SOCKET_ASB2) += socket_ASB2
subdirs-$(CONFIG_CPU_AMD_SOCKET_C32_NON_AGESA) += socket_C32
subdirs-$(CONFIG_CPU_AMD_SOCKET_G34_NON_AGESA) += socket_G34
subdirs-$(CONFIG_CPU_AMD_GEODE_GX2) += geode_gx2
subdirs-$(CONFIG_CPU_AMD_GEODE_LX) += geode_lx
subdirs-$(CONFIG_CPU_AMD_SOCKET_S1G1) += socket_S1G1

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@ -1,4 +1,5 @@
/* 2005.6 by yhlu
/* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
* 2005.6 by yhlu
* 2006.3 yhlu add copy data from CAR to ram
*/
#include <string.h>
@ -46,6 +47,15 @@ static void memset_(void *d, int val, size_t len)
memset(d, val, len);
}
static int memcmp_(void *d, const void *s, size_t len)
{
#if PRINTK_IN_CAR
printk(BIOS_SPEW, " Compare [%08x-%08x] with [%08x - %08x] ... ",
(u32) s, (u32) (s + len - 1), (u32) d, (u32) (d + len - 1));
#endif
return memcmp(d, s, len);
}
static void prepare_romstage_ramstack(void *resume_backup_memory)
{
size_t backup_top = backup_size();
@ -110,6 +120,12 @@ void post_cache_as_ram(void)
memcpy_(migrated_car, &_car_data_start[0], car_size);
print_car_debug("Done\n");
print_car_debug("Verifying data integrity in RAM... ");
if (memcmp_(migrated_car, &_car_data_start[0], car_size) == 0)
print_car_debug("Done\n");
else
print_car_debug("FAILED\n");
/* New stack grows right below migrated_car. */
print_car_debug("Switching to use RAM as stack... ");
cache_as_ram_switch_stack(migrated_car);
@ -128,6 +144,7 @@ void cache_as_ram_new_stack (void)
disable_cache_as_ram_bsp();
disable_cache();
/* Enable cached access to RAM in the range 1M to CONFIG_RAMTOP */
set_var_mtrr(0, 0x00000000, CONFIG_RAMTOP, MTRR_TYPE_WRBACK);
enable_cache();

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@ -2,6 +2,7 @@
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2008 Advanced Micro Devices, Inc.
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
*
* 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
@ -67,6 +68,9 @@ static void for_each_ap(u32 bsp_apicid, u32 core_range, process_ap_t process_ap,
u32 nb_cfg_54;
int i, j;
u32 ApicIdCoreIdSize;
uint8_t rev_gte_d = 0;
uint8_t dual_node = 0;
uint32_t f3xe8;
/* get_nodes define in ht_wrapper.c */
nodes = get_nodes();
@ -81,6 +85,16 @@ static void for_each_ap(u32 bsp_apicid, u32 core_range, process_ap_t process_ap,
/* Assume that all node are same stepping, otherwise we can use use
nb_cfg_54 from bsp for all nodes */
nb_cfg_54 = read_nb_cfg_54();
f3xe8 = pci_read_config32(NODE_PCI(0, 3), 0xe8);
if (cpuid_eax(0x80000001) >= 0x8)
/* Revision D or later */
rev_gte_d = 1;
if (rev_gte_d)
/* Check for dual node capability */
if (f3xe8 & 0x20000000)
dual_node = 1;
ApicIdCoreIdSize = (cpuid_ecx(0x80000008) >> 12 & 0xf);
if (ApicIdCoreIdSize) {
@ -91,6 +105,8 @@ static void for_each_ap(u32 bsp_apicid, u32 core_range, process_ap_t process_ap,
for (i = 0; i < nodes; i++) {
cores_found = get_core_num_in_bsp(i);
if (siblings > cores_found)
siblings = cores_found;
u32 jstart, jend;
@ -107,9 +123,21 @@ static void for_each_ap(u32 bsp_apicid, u32 core_range, process_ap_t process_ap,
}
for (j = jstart; j <= jend; j++) {
ap_apicid =
i * (nb_cfg_54 ? (siblings + 1) : 1) +
j * (nb_cfg_54 ? 1 : 64);
if (dual_node) {
ap_apicid = 0;
if (nb_cfg_54) {
ap_apicid |= ((i >> 1) & 0x3) << 4; /* Node ID */
ap_apicid |= ((i & 0x1) * (siblings + 1)) + j; /* Core ID */
} else {
ap_apicid |= i & 0x3; /* Node ID */
ap_apicid |= (((i & 0x1) * (siblings + 1)) + j) << 4; /* Core ID */
}
} else {
ap_apicid =
i * (nb_cfg_54 ? (siblings + 1) : 1) +
j * (nb_cfg_54 ? 1 : 64);
}
#if CONFIG_ENABLE_APIC_EXT_ID && (CONFIG_APIC_ID_OFFSET > 0)
#if !CONFIG_LIFT_BSP_APIC_ID

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@ -2,6 +2,7 @@
* This file is part of the coreboot project.
*
* Copyright (C) 2007 Advanced Micro Devices, Inc.
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
*
* 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
@ -153,6 +154,7 @@ static struct cpu_device_id cpu_table[] = {
{ X86_VENDOR_AMD, 0x100F63 }, /* DA-C3 */
{ X86_VENDOR_AMD, 0x100F80 }, /* HY-D0 */
{ X86_VENDOR_AMD, 0x100F81 }, /* HY-D1 */
{ X86_VENDOR_AMD, 0x100F91 }, /* HY-D1 */
{ X86_VENDOR_AMD, 0x100FA0 }, /* PH-E0 */
{ 0, 0 },
};

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@ -157,6 +157,24 @@ static const struct str_s String2_socket_AM2[] = {
{0, 0, 0, NULL}
};
static const struct str_s String1_socket_G34[] = {
{0x00, 0x07, 0x00, "AMD Opteron(tm) Processor 61"},
{0x00, 0x0B, 0x00, "AMD Opteron(tm) Processor 61"},
{0x01, 0x07, 0x01, "Embedded AMD Opteron(tm) Processor "},
{0, 0, 0, NULL}
};
static const struct str_s String2_socket_G34[] = {
{0x00, 0x07, 0x00, " HE"},
{0x00, 0x07, 0x01, " SE"},
{0x00, 0x0B, 0x00, " HE"},
{0x00, 0x0B, 0x01, " SE"},
{0x00, 0x0B, 0x0F, ""},
{0x01, 0x07, 0x01, " QS"},
{0x01, 0x07, 0x02, " KS"},
{0, 0, 0, NULL}
};
static const struct str_s String1_socket_C32[] = {
{0x00, 0x03, 0x00, "AMD Opteron(tm) Processor 41"},
{0x00, 0x05, 0x00, "AMD Opteron(tm) Processor 41"},
@ -240,6 +258,11 @@ int init_processor_name(void)
str = String1_socket_AM2;
str2 = String2_socket_AM2;
break;
case 3: /* G34 */
str = String1_socket_G34;
str2 = String2_socket_G34;
str2_checkNC = 0;
break;
case 5: /* C32 */
str = String1_socket_C32;
str2 = String2_socket_C32;

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@ -26,6 +26,7 @@
#include "ram_calc.h"
#if !IS_ENABLED(CONFIG_LATE_CBMEM_INIT)
uint64_t get_uma_memory_size(uint64_t topmem)
{
uint64_t uma_size = 0;
@ -50,3 +51,4 @@ void *cbmem_top(void)
return (void *) topmem - get_uma_memory_size(topmem);
}
#endif

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@ -1,6 +1,7 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
* Copyright (C) 2007 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
@ -37,33 +38,71 @@ u32 get_initial_apicid(void)
return ((cpuid_ebx(1) >> 24) & 0xff);
}
//called by amd_siblings too
#define CORE_ID_BIT 2
#define NODE_ID_BIT 6
/* Called by amd_siblings (ramstage) as well */
struct node_core_id get_node_core_id(u32 nb_cfg_54)
{
struct node_core_id id;
u32 core_id_bits;
uint8_t apicid;
uint8_t rev_gte_d = 0;
uint8_t dual_node = 0;
uint32_t f3xe8;
u32 ApicIdCoreIdSize = (cpuid_ecx(0x80000008)>>12 & 0xf);
if(ApicIdCoreIdSize) {
core_id_bits = ApicIdCoreIdSize;
} else {
core_id_bits = CORE_ID_BIT; //quad core
}
#ifdef __PRE_RAM__
f3xe8 = pci_read_config32(NODE_PCI(0, 3), 0xe8);
#else
f3xe8 = pci_read_config32(get_node_pci(0, 3), 0xe8);
#endif
// get the apicid via cpuid(1) ebx[31:24]
if (cpuid_eax(0x80000001) >= 0x8)
/* Revision D or later */
rev_gte_d = 1;
if (rev_gte_d)
/* Check for dual node capability */
if (f3xe8 & 0x20000000)
dual_node = 1;
/* Get the apicid via cpuid(1) ebx[31:24]
* The apicid format varies based on processor revision
*/
apicid = (cpuid_ebx(1) >> 24) & 0xff;
if( nb_cfg_54) {
// when NB_CFG[54] is set, nodeid = ebx[31:26], coreid = ebx[25:24]
id.coreid = (cpuid_ebx(1) >> 24) & 0xff;
id.nodeid = (id.coreid>>core_id_bits);
id.coreid &= ((1<<core_id_bits)-1);
if (rev_gte_d && dual_node) {
id.coreid = apicid & 0xf;
id.nodeid = (apicid & 0x30) >> 4;
} else if (rev_gte_d && !dual_node) {
id.coreid = apicid & 0x7;
id.nodeid = (apicid & 0x38) >> 3;
} else {
id.coreid = apicid & 0x3;
id.nodeid = (apicid & 0x1c) >> 2;
}
} else {
// when NB_CFG[54] is clear, nodeid = ebx[29:24], coreid = ebx[31:30]
id.nodeid = (cpuid_ebx(1) >> 24) & 0xff;
id.coreid = (id.nodeid>>NODE_ID_BIT);
id.nodeid &= ((1<<NODE_ID_BIT)-1);
if (rev_gte_d && dual_node) {
id.coreid = (apicid & 0xf0) >> 4;
id.nodeid = apicid & 0x3;
} else if (rev_gte_d && !dual_node) {
id.coreid = (apicid & 0xe0) >> 5;
id.nodeid = apicid & 0x7;
} else {
id.coreid = (apicid & 0x60) >> 5;
id.nodeid = apicid & 0x7;
}
}
if (rev_gte_d && dual_node) {
/* Coreboot expects each separate processor die to be on a different nodeid.
* Since the code above returns nodeid 0 even on internal node 1 some fixup is needed...
*/
uint8_t core_count = (((f3xe8 & 0x00008000) >> 13) | ((f3xe8 & 0x00003000) >> 12)) + 1;
id.nodeid = id.nodeid * 2;
if (id.coreid >= core_count) {
id.nodeid += 1;
id.coreid = id.coreid - core_count;
}
}
return id;
}

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@ -0,0 +1,29 @@
config CPU_AMD_SOCKET_G34_NON_AGESA
bool
select CPU_AMD_MODEL_10XXX
select PCI_IO_CFG_EXT
select X86_AMD_FIXED_MTRRS
if CPU_AMD_SOCKET_G34_NON_AGESA
config CPU_SOCKET_TYPE
hex
default 0x15
config EXT_RT_TBL_SUPPORT
bool
default n
config CBB
hex
default 0x0
config CDB
hex
default 0x18
config XIP_ROM_SIZE
hex
default 0x80000
endif

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@ -0,0 +1,14 @@
ramstage-y += socket_G34.c
subdirs-y += ../model_10xxx
subdirs-y += ../quadcore
subdirs-y += ../mtrr
subdirs-y += ../microcode
subdirs-y += ../../x86/tsc
subdirs-y += ../../x86/lapic
subdirs-y += ../../x86/cache
subdirs-y += ../../x86/pae
subdirs-y += ../../x86/mtrr
subdirs-y += ../../x86/smm
subdirs-y += ../smm
cpu_incs-y += $(src)/cpu/amd/car/cache_as_ram.inc

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@ -0,0 +1,25 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 Advanced Micro Devices, Inc.
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
*
* 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; version 2 of the License.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <device/device.h>
struct chip_operations cpu_amd_socket_G34_ops = {
CHIP_NAME("socket G34")
};

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@ -187,6 +187,43 @@ static void ht_route_link(struct bus *link, scan_state mode)
}
}
static void amd_g34_fixup(struct bus *link, device_t dev)
{
uint32_t nodeid = amdfam10_nodeid(dev);
uint8_t rev_gte_d = 0;
uint8_t dual_node = 0;
uint32_t f3xe8;
if (cpuid_eax(0x80000001) >= 0x8)
/* Revision D or later */
rev_gte_d = 1;
if (rev_gte_d) {
f3xe8 = pci_read_config32(get_node_pci(0, 3), 0xe8);
/* Check for dual node capability */
if (f3xe8 & 0x20000000)
dual_node = 1;
if (dual_node) {
/* Each G34 processor contains a defective HT link.
* See the BKDG Rev 3.62 section 2.7.1.5 for details.
*/
f3xe8 = pci_read_config32(get_node_pci(nodeid, 3), 0xe8);
uint8_t internal_node_number = ((f3xe8 & 0xc0000000) >> 30);
if (internal_node_number == 0) {
/* Node 0 */
if (link->link_num == 6) /* Link 2 Sublink 1 */
printk(BIOS_DEBUG, "amdfam10_scan_chain(): node %d (internal node ID %d): skipping defective HT link\n", nodeid, internal_node_number);
} else {
/* Node 1 */
if (link->link_num == 5) /* Link 1 Sublink 1 */
printk(BIOS_DEBUG, "amdfam10_scan_chain(): node %d (internal node ID %d): skipping defective HT link\n", nodeid, internal_node_number);
}
}
}
}
static void amdfam10_scan_chain(struct bus *link)
{
unsigned int next_unitid;
@ -277,8 +314,11 @@ static void amdfam10_scan_chains(device_t dev)
trim_ht_chain(dev);
for (link = dev->link_list; link; link = link->next) {
if (link->ht_link_up)
if (link->ht_link_up) {
if (IS_ENABLED(CONFIG_CPU_AMD_MODEL_10XXX))
amd_g34_fixup(link, dev);
amdfam10_scan_chain(link);
}
}
}
@ -323,8 +363,7 @@ static struct resource *amdfam10_find_iopair(device_t dev, unsigned nodeid, unsi
if (result == 1) {
/* I have been allocated this one */
break;
}
else if (result > 1) {
} else if (result > 1) {
/* I have a free register pair */
free_reg = reg;
}
@ -357,8 +396,7 @@ static struct resource *amdfam10_find_mempair(device_t dev, u32 nodeid, u32 link
if (result == 1) {
/* I have been allocated this one */
break;
}
else if (result > 1) {
} else if (result > 1) {
/* I have a free register pair */
free_reg = reg;
}
@ -473,8 +511,7 @@ static void amdfam10_set_resource(device_t dev, struct resource *resource,
set_io_addr_reg(dev, nodeid, link_num, reg, rbase>>8, rend>>8);
store_conf_io_addr(nodeid, link_num, reg, (resource->index >> 24), rbase>>8, rend>>8);
}
else if (resource->flags & IORESOURCE_MEM) {
} else if (resource->flags & IORESOURCE_MEM) {
set_mmio_addr_reg(nodeid, link_num, reg, (resource->index >>24), rbase>>8, rend>>8, sysconf.nodes) ;// [39:8]
store_conf_mmio_addr(nodeid, link_num, reg, (resource->index >>24), rbase>>8, rend>>8);
}
@ -799,8 +836,7 @@ static void amdfam10_domain_set_resources(device_t dev)
}
if ((basek + sizek) <= 4*1024*1024) {
sizek = 0;
}
else {
} else {
basek = 4*1024*1024;
sizek -= (4*1024*1024 - mmio_basek);
}
@ -977,8 +1013,7 @@ static int amdfam10_get_smbios_data17(int* count, int handle, int parent_handle,
if (dimm_size_bytes > 0x800000000) {
t->size = 0x7FFF;
t->extended_size = dimm_size_bytes;
}
else {
} else {
t->size = dimm_size_bytes / (1024*1024);
t->size &= (~0x8000); /* size specified in megabytes */
}
@ -1005,8 +1040,7 @@ static int amdfam10_get_smbios_data17(int* count, int handle, int parent_handle,
t->part_number = smbios_add_string(t->eos, mem_info->dct_stat[node].DimmPartNumber[slot]);
if (mem_info->dct_stat[node].DimmSerialNumber[slot] == 0) {
t->serial_number = smbios_add_string(t->eos, "None");
}
else {
} else {
snprintf(string_buffer, sizeof (string_buffer), "%08X", mem_info->dct_stat[node].DimmSerialNumber[slot]);
t->serial_number = smbios_add_string(t->eos, string_buffer);
}
@ -1108,8 +1142,7 @@ static void add_more_links(device_t dev, unsigned total_links)
memset(link, 0, links*sizeof(*link));
last->next = link;
}
}
else {
} else {
link = malloc(total_links*sizeof(*link));
memset(link, 0, total_links*sizeof(*link));
dev->link_list = link;
@ -1244,6 +1277,10 @@ static void cpu_bus_scan(device_t dev)
unsigned busn, devn;
struct bus *pbus;
uint8_t rev_gte_d = 0;
uint8_t dual_node = 0;
uint32_t f3xe8;
busn = CONFIG_CBB;
devn = CONFIG_CDB+i;
pbus = dev_mc->bus;
@ -1268,6 +1305,7 @@ static void cpu_bus_scan(device_t dev)
}
}
/* Ok, We need to set the links for that device.
* otherwise the device under it will not be scanned
*/
@ -1279,6 +1317,17 @@ static void cpu_bus_scan(device_t dev)
if (cdb_dev)
add_more_links(cdb_dev, 4);
f3xe8 = pci_read_config32(get_node_pci(0, 3), 0xe8);
if (cpuid_eax(0x80000001) >= 0x8)
/* Revision D or later */
rev_gte_d = 1;
if (rev_gte_d)
/* Check for dual node capability */
if (f3xe8 & 0x20000000)
dual_node = 1;
cores_found = 0; // one core
cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 3));
int enable_node = cdb_dev && cdb_dev->enabled;
@ -1290,6 +1339,9 @@ static void cpu_bus_scan(device_t dev)
printk(BIOS_DEBUG, " %s siblings=%d\n", dev_path(cdb_dev), cores_found);
}
if (siblings > cores_found)
siblings = cores_found;
u32 jj;
if(disable_siblings) {
jj = 0;
@ -1299,7 +1351,20 @@ static void cpu_bus_scan(device_t dev)
}
for (j = 0; j <=jj; j++ ) {
u32 apic_id = i * (nb_cfg_54?(siblings+1):1) + j * (nb_cfg_54?1:64); // ?
u32 apic_id;
if (dual_node) {
apic_id = 0;
if (nb_cfg_54) {
apic_id |= ((i >> 1) & 0x3) << 4; /* Node ID */
apic_id |= ((i & 0x1) * (siblings + 1)) + j; /* Core ID */
} else {
apic_id |= i & 0x3; /* Node ID */
apic_id |= (((i & 0x1) * (siblings + 1)) + j) << 4; /* Core ID */
}
} else {
apic_id = i * (nb_cfg_54?(siblings+1):1) + j * (nb_cfg_54?1:64); // ?
}
#if CONFIG_ENABLE_APIC_EXT_ID && (CONFIG_APIC_ID_OFFSET>0)
if(sysconf.enabled_apic_ext_id) {
@ -1311,7 +1376,7 @@ static void cpu_bus_scan(device_t dev)
device_t cpu = add_cpu_device(cpu_bus, apic_id, enable_node);
if (cpu)
amd_cpu_topology(cpu, i, j);
} //j
}
}
}
@ -1356,8 +1421,7 @@ static void root_complex_enable_dev(struct device *dev)
/* Set the operations if it is a special bus type */
if (dev->path.type == DEVICE_PATH_DOMAIN) {
dev->ops = &pci_domain_ops;
}
else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
} else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
dev->ops = &cpu_bus_ops;
}
}

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@ -22,6 +22,8 @@
#include <console/console.h>
#include <northbridge/amd/amdfam10/amdfam10.h>
#include "ht_wrapper.h"
/*----------------------------------------------------------------------------
* TYPEDEFS, DEFINITIONS AND MACROS
*
@ -113,6 +115,20 @@ void getAmdTopolist(u8 ***p)
*p = (u8 **)amd_topo_list;
}
/**
* BOOL AMD_CB_IgnoreLink(u8 Node, u8 Link)
* Description:
* This routine is used to ignore connected yet faulty HT links,
* such as those present in a G34 processor package.
*
* Parameters:
* @param[in] node = The node on which this chain is located
* @param[in] link = The link on the host for this chain
*/
static BOOL AMD_CB_IgnoreLink (u8 node, u8 link)
{
return 0;
}
/**
* void amd_ht_init(struct sys_info *sysinfo)
@ -128,7 +144,7 @@ static void amd_ht_init(struct sys_info *sysinfo)
0, // u8 AutoBusStart;
32, // u8 AutoBusMax;
6, // u8 AutoBusIncrement;
NULL, // BOOL (*AMD_CB_IgnoreLink)();
AMD_CB_IgnoreLink, // BOOL (*AMD_CB_IgnoreLink)();
NULL, // BOOL (*AMD_CB_OverrideBusNumbers)();
AMD_CB_ManualBUIDSwapList, // BOOL (*AMD_CB_ManualBUIDSwapList)();
NULL, // void (*AMD_CB_DeviceCapOverride)();
@ -146,6 +162,93 @@ static void amd_ht_init(struct sys_info *sysinfo)
printk(BIOS_DEBUG, "Enter amd_ht_init()\n");
amdHtInitialize(&ht_wrapper);
printk(BIOS_DEBUG, "Exit amd_ht_init()\n");
}
/**
* void amd_ht_fixup(struct sys_info *sysinfo)
*
* AMD HT fixup
*
*/
void amd_ht_fixup(struct sys_info *sysinfo) {
printk(BIOS_DEBUG, "amd_ht_fixup()\n");
if (IS_ENABLED(CONFIG_CPU_AMD_MODEL_10XXX)) {
uint8_t rev_gte_d = 0;
uint8_t dual_node = 0;
uint32_t f3xe8;
uint32_t family;
uint32_t model;
family = model = cpuid_eax(0x80000001);
model = ((model & 0xf0000) >> 16) | ((model & 0xf0) >> 4);
if (model >= 0x8)
/* Revision D or later */
rev_gte_d = 1;
if (rev_gte_d) {
f3xe8 = pci_read_config32(NODE_PCI(0, 3), 0xe8);
/* Check for dual node capability */
if (f3xe8 & 0x20000000)
dual_node = 1;
if (dual_node) {
/* Each G34 processor contains a defective HT link.
* See the BKDG Rev 3.62 section 2.7.1.5 for details.
*/
uint8_t node;
uint8_t node_count = get_nodes();
uint32_t dword;
for (node = 0; node < node_count; node++) {
f3xe8 = pci_read_config32(NODE_PCI(node, 3), 0xe8);
uint8_t internal_node_number = ((f3xe8 & 0xc0000000) >> 30);
printk(BIOS_DEBUG, "amd_ht_fixup(): node %d (internal node ID %d): disabling defective HT link\n", node, internal_node_number);
if (internal_node_number == 0) {
uint8_t package_link_3_connected = pci_read_config32(NODE_PCI(node, 0), 0xd8) & 0x1;
if (package_link_3_connected) {
/* Set WidthIn and WidthOut to 0 */
dword = pci_read_config32(NODE_PCI(node, 0), 0xc4);
dword &= ~0x77000000;
pci_write_config32(NODE_PCI(node, 0), 0xc4, dword);
/* Set Ganged to 1 */
dword = pci_read_config32(NODE_PCI(node, 0), 0x178);
dword |= 0x00000001;
pci_write_config32(NODE_PCI(node, 0), 0x178, dword);
} else {
/* Set ConnDly to 1 */
dword = pci_read_config32(NODE_PCI(node, 0), 0x16c);
dword |= 0x00000100;
pci_write_config32(NODE_PCI(node, 0), 0x16c, dword);
/* Set TransOff and EndOfChain to 1 */
dword = pci_read_config32(NODE_PCI(node, 4), 0xc4);
dword |= 0x000000c0;
pci_write_config32(NODE_PCI(node, 4), 0xc4, dword);
}
} else if (internal_node_number == 1) {
uint8_t package_link_3_connected = pci_read_config32(NODE_PCI(node, 0), 0xb8) & 0x1;
if (package_link_3_connected) {
/* Set WidthIn and WidthOut to 0 */
dword = pci_read_config32(NODE_PCI(node, 0), 0xa4);
dword &= ~0x77000000;
pci_write_config32(NODE_PCI(node, 0), 0xa4, dword);
/* Set Ganged to 1 */
dword = pci_read_config32(NODE_PCI(node, 0), 0x174);
dword |= 0x00000001;
pci_write_config32(NODE_PCI(node, 0), 0x174, dword);
} else {
/* Set ConnDly to 1 */
dword = pci_read_config32(NODE_PCI(node, 0), 0x16c);
dword |= 0x00000100;
pci_write_config32(NODE_PCI(node, 0), 0x16c, dword);
/* Set TransOff and EndOfChain to 1 */
dword = pci_read_config32(NODE_PCI(node, 4), 0xa4);
dword |= 0x000000c0;
pci_write_config32(NODE_PCI(node, 4), 0xa4, dword);
}
}
}
}
}
}
}

View File

@ -0,0 +1,25 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
*
* 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; version 2 of the License.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc.
*/
#ifndef AMD_HT_WRAPPER_H
#define AMD_HT_WRAPPER_H
void amd_ht_fixup(struct sys_info *sysinfo);
#endif