fac95e3bfe
Add IDs of some SNB and Haswell chips; use more descriptive names. Add PCIEXBAR and PXPEPBAR read support for SNB/IVB/Haswell. Change-Id: I16753bf90061fc2065b813b1c2169e7b7bcc89e8 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: http://review.coreboot.org/7360 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) Reviewed-by: Mathias Krause <minipli@googlemail.com>
499 lines
17 KiB
C
499 lines
17 KiB
C
/*
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* inteltool - dump all registers on an Intel CPU + chipset based system.
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*
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* Copyright (C) 2008-2010 by coresystems GmbH
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* Copyright (C) 2012 Anton Kochkov
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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 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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include "inteltool.h"
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/* 320766 */
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static const io_register_t nehalem_dmi_registers[] = {
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{ 0x00, 4, "DMIVCH" }, // DMI Virtual Channel Capability Header
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{ 0x04, 4, "DMIVCCAP1" }, // DMI Port VC Capability Register 1
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{ 0x08, 4, "DMIVCCAP2" }, // DMI Port VC Capability Register 2
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{ 0x0C, 4, "DMIVCCTL" }, // DMI Port VC Control
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{ 0x10, 4, "DMIVC0RCAP" }, // DMI VC0 Resource Capability
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{ 0x14, 4, "DMIVC0RCTL" }, // DMI VC0 Resource Control
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/* { 0x18, 2, "RSVD" }, // Reserved */
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{ 0x1A, 2, "DMIVC0RSTS" }, // DMI VC0 Resource Status
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{ 0x1C, 4, "DMIVC1RCAP" }, // DMI VC1 Resource Capability
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{ 0x20, 4, "DMIVC1RCTL" }, // DMI VC1 Resource Control
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/* { 0x24, 2, "RSVD" }, // Reserved */
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{ 0x26, 2, "DMIVC1RSTS" }, // DMI VC1 Resource Status
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/* ... - Reserved */
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{ 0x84, 4, "DMILCAP" }, // DMI Link Capabilities
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{ 0x88, 2, "DMILCTL" }, // DMI Link Control
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{ 0x8A, 2, "DMILSTS" }, // DMI Link Status
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/* ... - Reserved */
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};
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/* 322812 */
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static const io_register_t westmere_dmi_registers[] = {
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{ 0x00, 4, "DMIVCECH" }, // DMI Virtual Channel Enhanced Capability
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{ 0x04, 4, "DMIPVCCAP1" }, // DMI Port VC Capability Register 1
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{ 0x08, 4, "DMIPVCCAP2" }, // DMI Port VC Capability Register 2
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{ 0x0C, 2, "DMIPVCCTL" }, // DMI Port VC Control
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/* { 0x0E, 2, "RSVD" }, // Reserved */
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{ 0x10, 4, "DMIVC0RCAP" }, // DMI VC0 Resource Capability
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{ 0x14, 4, "DMIVC0RCTL" }, // DMI VC0 Resource Control
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/* { 0x18, 2, "RSVD" }, // Reserved */
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{ 0x1A, 2, "DMIVC0RSTS" }, // DMI VC0 Resource Status
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{ 0x1C, 4, "DMIVC1RCAP" }, // DMI VC1 Resource Capability
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{ 0x20, 4, "DMIVC1RCTL1" }, // DMI VC1 Resource Control
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/* { 0x24, 2, "RSVD" }, // Reserved */
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{ 0x26, 2, "DMIC1RSTS" }, // DMI VC1 Resource Status
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/* ... - Reserved */
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{ 0x84, 4, "DMILCAP" }, // DMI Link Capabilities
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{ 0x88, 2, "DMILCTL" }, // DMI Link Control
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{ 0x8A, 2, "DMILSTS" }, // DMI Link Status
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/* ... - Reserved */
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};
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static const io_register_t sandybridge_dmi_registers[] = {
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{ 0x00, 4, "DMI VCECH" }, // DMI Virtual Channel Enhanced Capability
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{ 0x04, 4, "DMI PVCCAP1" }, // DMI Port VC Capability Register 1
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{ 0x08, 4, "DMI PVVAP2" }, // DMI Port VC Capability Register 2
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{ 0x0C, 2, "DMI PVCCTL" }, // DMI Port VC Control
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/* { 0x0E, 2, "RSVD" }, // Reserved */
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{ 0x10, 4, "DMI VC0RCAP" }, // DMI VC0 Resource Capability
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{ 0x14, 4, "DMI VC0RCTL" }, // DMI VC0 Resource Control
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/* { 0x18, 2, "RSVD" }, // Reserved */
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{ 0x1A, 2, "DMI VC0RSTS" }, // DMI VC0 Resource Status
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{ 0x1C, 4, "DMI VC1RCAP" }, // DMI VC1 Resource Capability
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{ 0x20, 4, "DMI VC1RCTL" }, // DMI VC1 Resource Control
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/* { 0x24, 2, "RSVD" }, // Reserved */
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{ 0x26, 2, "DMI VC1RSTS" }, // DMI VC1 Resource Status
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{ 0x28, 4, "DMI VCPRCAP" }, // DMI VCp Resource Capability
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{ 0x2C, 4, "DMI VCPRCTL" }, // DMI VCp Resource Control
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/* { 0x30, 2, "RSVD" }, // Reserved */
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{ 0x32, 2, "DMI VCPRSTS" }, // DMI VCp Resource Status
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{ 0x34, 4, "DMI VCMRCAP" }, // DMI VCm Resource Capability
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{ 0x38, 4, "DMI VCMRCTL" }, // DMI VCm Resource Control
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/* { 0x3C, 2, "RSVD" }, // Reserved */
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{ 0x3E, 2, "DMI VCMRSTS" }, // DMI VCm Resource Status
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/* { 0x40, 4, "RSVD" }, // Reserved */
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{ 0x44, 4, "DMI ESC" }, // DMI Element Self Description
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/* { 0x48, 8, "RSVD" }, // Reserved */
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{ 0x50, 4, "DMI LE1D" }, // DMI Link Entry 1 Description
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/* { 0x54, 4, "RSVD" }, // Reserved */
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{ 0x58, 4, "DMI LE1A" }, // DMI Link Entry 1 Address
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{ 0x5C, 4, "DMI LUE1A" }, // DMI Link Upper Entry 1 Address
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{ 0x60, 4, "DMI LE2D" }, // DMI Link Entry 2 Description
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/* { 0x64, 4, "RSVD" }, // Reserved */
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{ 0x68, 4, "DMI LE2A" }, // DMI Link Entry 2 Address
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/* { 0x6C, 4, "RSVD" }, // Reserved
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{ 0x70, 8, "RSVD" }, // Reserved
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{ 0x78, 8, "RSVD" }, // Reserved
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{ 0x80, 4, "RSVD" }, // Reserved */
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{ 0x84, 4, "LCAP" }, // Link Capabilities
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{ 0x88, 2, "LCTL" }, // Link Control
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{ 0x8A, 2, "LSTS" }, // Link Status
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/* { 0x8C, 4, "RSVD" }, // Reserved
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{ 0x90, 4, "RSVD" }, // Reserved
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{ 0x94, 4, "RSVD" }, // Reserved */
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{ 0x98, 2, "LCTL2" }, // Link Control 2
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{ 0x9A, 2, "LSTS2" }, // Link Status 2
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/* ... - Reserved */
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{ 0xBC0, 4, "AFE_BMUF0" }, // AFE BMU Configuration Function 0
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{ 0xBC4, 4, "RSVD" }, // Reserved
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{ 0xBC8, 4, "RSVD" }, // Reserved
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{ 0xBCC, 4, "AFE_BMUT0" }, // AFE BMU Configuration Test 0
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/* ... - Reserved */
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};
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/*
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* All Haswell DMI Registers per
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*
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* Mobile 4th Generation Intel Core TM Processor Family, Mobile Intel Pentium Processor Family,
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* and Mobile Intel Celeron Processor Family
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* Datasheet Volume 2
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* 329002-002
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*/
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static const io_register_t haswell_ult_dmi_registers[] = {
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{ 0x00, 4, "DMIVCECH" }, // DMI Virtual Channel Enhanced Capability
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{ 0x04, 4, "DMIPVCCAP1" }, // DMI Port VC Capability Register 1
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{ 0x08, 4, "DMIPVCCAP2" }, // DMI Port VC Capability Register 2
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{ 0x0C, 2, "DMI PVCCTL" }, // DMI Port VC Control
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/* { 0x0E, 2, "RSVD" }, // Reserved */
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{ 0x10, 4, "DMIVC0RCAP" }, // DMI VC0 Resource Capability
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{ 0x14, 4, "DMIVC0RCTL" }, // DMI VC0 Resource Control
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/* { 0x18, 2, "RSVD" }, // Reserved */
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{ 0x1A, 2, "DMIVC0RSTS" }, // DMI VC0 Resource Status
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{ 0x1C, 4, "DMIVC1RCAP" }, // DMI VC1 Resource Capability
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{ 0x20, 4, "DMIVC1RCTL" }, // DMI VC1 Resource Control
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/* { 0x24, 2, "RSVD" }, // Reserved */
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{ 0x26, 2, "DMIVC1RSTS" }, // DMI VC1 Resource Status
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{ 0x28, 4, "DMIVCPRCAP" }, // DMI VCp Resource Capability
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{ 0x2C, 4, "DMIVCPRCTL" }, // DMI VCp Resource Control
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/* { 0x30, 2, "RSVD" }, // Reserved */
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{ 0x32, 2, "DMIVCPRSTS" }, // DMI VCp Resource Status
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{ 0x34, 4, "DMIVCMRCAP" }, // DMI VCm Resource Capability
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{ 0x38, 4, "DMIVCMRCTL" }, // DMI VCm Resource Control
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/* { 0x3C, 2, "RSVD" }, // Reserved */
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{ 0x3E, 2, "DMIVCMRSTS" }, // DMI VCm Resource Status
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{ 0x40, 4, "DMIRCLDECH" }, // DMI Root Complex Link Declaration */
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{ 0x44, 4, "DMIESD" }, // DMI Element Self Description
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/* { 0x48, 4, "RSVD" }, // Reserved */
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/* { 0x4C, 4, "RSVD" }, // Reserved */
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{ 0x50, 4, "DMILE1D" }, // DMI Link Entry 1 Description
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/* { 0x54, 4, "RSVD" }, // Reserved */
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{ 0x58, 4, "DMILE1A" }, // DMI Link Entry 1 Address
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{ 0x5C, 4, "DMILUE1A" }, // DMI Link Upper Entry 1 Address
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{ 0x60, 4, "DMILE2D" }, // DMI Link Entry 2 Description
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/* { 0x64, 4, "RSVD" }, // Reserved */
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{ 0x68, 4, "DMILE2A" }, // DMI Link Entry 2 Address
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/* { 0x6C, 4, "RSVD" }, // Reserved */
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/* { 0x70, 4, "RSVD" }, // Reserved */
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/* { 0x74, 4, "RSVD" }, // Reserved */
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/* { 0x78, 4, "RSVD" }, // Reserved */
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/* { 0x7C, 4, "RSVD" }, // Reserved */
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/* { 0x80, 4, "RSVD" }, // Reserved */
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/* { 0x84, 4, "RSVD" }, // Reserved */
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{ 0x88, 2, "LCTL" }, // Link Control
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/* ... - Reserved */
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{ 0x1C4, 4, "DMIUESTS" }, // DMI Uncorrectable Error Status
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{ 0x1C8, 4, "DMIUEMSK" }, // DMI Uncorrectable Error Mask
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{ 0x1D0, 4, "DMICESTS" }, // DMI Correctable Error Status
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{ 0x1D4, 4, "DMICEMSK" }, // DMI Correctable Error Mask
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/* ... - Reserved */
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};
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/*
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* Egress Port Root Complex MMIO configuration space
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*/
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int print_epbar(struct pci_dev *nb)
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{
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int i, size = (4 * 1024);
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volatile uint8_t *epbar;
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uint64_t epbar_phys;
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printf("\n============= EPBAR =============\n\n");
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switch (nb->device_id) {
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case PCI_DEVICE_ID_INTEL_82915:
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case PCI_DEVICE_ID_INTEL_82945GM:
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case PCI_DEVICE_ID_INTEL_82945GSE:
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case PCI_DEVICE_ID_INTEL_82945P:
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case PCI_DEVICE_ID_INTEL_82946:
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case PCI_DEVICE_ID_INTEL_82975X:
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epbar_phys = pci_read_long(nb, 0x40) & 0xfffffffe;
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break;
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case PCI_DEVICE_ID_INTEL_82965PM:
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case PCI_DEVICE_ID_INTEL_82Q965:
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case PCI_DEVICE_ID_INTEL_82Q35:
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case PCI_DEVICE_ID_INTEL_82G33:
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case PCI_DEVICE_ID_INTEL_82Q33:
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case PCI_DEVICE_ID_INTEL_82X38:
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case PCI_DEVICE_ID_INTEL_32X0:
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case PCI_DEVICE_ID_INTEL_82X4X:
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case PCI_DEVICE_ID_INTEL_ATOM_DXXX:
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case PCI_DEVICE_ID_INTEL_ATOM_NXXX:
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case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_D:
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case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_M:
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case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_E3:
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case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_D:
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case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_M:
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case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_E3:
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case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_015c:
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case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_D:
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case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_M:
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case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_E3:
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case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_U:
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epbar_phys = pci_read_long(nb, 0x40) & 0xfffffffe;
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epbar_phys |= ((uint64_t)pci_read_long(nb, 0x44)) << 32;
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break;
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case PCI_DEVICE_ID_INTEL_82810:
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case PCI_DEVICE_ID_INTEL_82810_DC:
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case PCI_DEVICE_ID_INTEL_82810E_DC:
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case PCI_DEVICE_ID_INTEL_82830M:
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case PCI_DEVICE_ID_INTEL_82865:
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printf("This northbridge does not have EPBAR.\n");
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return 1;
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default:
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printf("Error: Dumping EPBAR on this northbridge is not (yet) supported.\n");
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return 1;
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}
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epbar = map_physical(epbar_phys, size);
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if (epbar == NULL) {
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perror("Error mapping EPBAR");
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exit(1);
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}
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printf("EPBAR = 0x%08" PRIx64 " (MEM)\n\n", epbar_phys);
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for (i = 0; i < size; i += 4) {
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if (*(uint32_t *)(epbar + i))
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printf("0x%04x: 0x%08x\n", i, *(uint32_t *)(epbar+i));
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}
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unmap_physical((void *)epbar, size);
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return 0;
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}
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/*
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* MCH-ICH Serial Interconnect Ingress Root Complex MMIO configuration space
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*/
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int print_dmibar(struct pci_dev *nb)
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{
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int i, size = (4 * 1024);
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volatile uint8_t *dmibar;
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uint64_t dmibar_phys;
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const io_register_t *dmi_registers = NULL;
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printf("\n============= DMIBAR ============\n\n");
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switch (nb->device_id) {
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case PCI_DEVICE_ID_INTEL_82915:
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case PCI_DEVICE_ID_INTEL_82945GM:
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case PCI_DEVICE_ID_INTEL_82945GSE:
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case PCI_DEVICE_ID_INTEL_82945P:
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case PCI_DEVICE_ID_INTEL_82975X:
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dmibar_phys = pci_read_long(nb, 0x4c) & 0xfffffffe;
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break;
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case PCI_DEVICE_ID_INTEL_82946:
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case PCI_DEVICE_ID_INTEL_82965PM:
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case PCI_DEVICE_ID_INTEL_82Q965:
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case PCI_DEVICE_ID_INTEL_82Q35:
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case PCI_DEVICE_ID_INTEL_82G33:
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case PCI_DEVICE_ID_INTEL_82Q33:
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case PCI_DEVICE_ID_INTEL_82X38:
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case PCI_DEVICE_ID_INTEL_32X0:
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case PCI_DEVICE_ID_INTEL_82X4X:
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case PCI_DEVICE_ID_INTEL_ATOM_DXXX:
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case PCI_DEVICE_ID_INTEL_ATOM_NXXX:
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dmibar_phys = pci_read_long(nb, 0x68) & 0xfffffffe;
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dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
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break;
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case PCI_DEVICE_ID_INTEL_82810:
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case PCI_DEVICE_ID_INTEL_82810_DC:
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case PCI_DEVICE_ID_INTEL_82810E_DC:
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case PCI_DEVICE_ID_INTEL_82865:
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printf("This northbridge does not have DMIBAR.\n");
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return 1;
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case PCI_DEVICE_ID_INTEL_82X58:
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dmibar_phys = pci_read_long(nb, 0x50) & 0xfffff000;
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break;
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case PCI_DEVICE_ID_INTEL_CORE_0TH_GEN:
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/* DMIBAR is called DMIRCBAR in Nehalem */
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dmibar_phys = pci_read_long(nb, 0x50) & 0xfffff000; /* 31:12 */
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dmi_registers = nehalem_dmi_registers;
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size = ARRAY_SIZE(nehalem_dmi_registers);
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break;
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case PCI_DEVICE_ID_INTEL_CORE_1ST_GEN:
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dmibar_phys = pci_read_long(nb, 0x68);
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dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
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dmibar_phys &= 0x0000000ffffff000UL; /* 35:12 */
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dmi_registers = westmere_dmi_registers;
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size = ARRAY_SIZE(westmere_dmi_registers);
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break;
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case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_D:
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case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_M:
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case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_E3:
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dmi_registers = sandybridge_dmi_registers;
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size = ARRAY_SIZE(sandybridge_dmi_registers);
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case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_D: /* pretty printing not implemented yet */
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case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_M:
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case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_E3:
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case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_015c:
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case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_D:
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case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_M:
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case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_E3:
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dmibar_phys = pci_read_long(nb, 0x68);
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dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
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dmibar_phys &= 0x0000007ffffff000UL; /* 38:12 */
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break;
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case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_U:
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dmi_registers = haswell_ult_dmi_registers;
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size = ARRAY_SIZE(haswell_ult_dmi_registers);
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dmibar_phys = pci_read_long(nb, 0x68);
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dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
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dmibar_phys &= 0x0000007ffffff000UL; /* 38:12 */
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break;
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default:
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printf("Error: Dumping DMIBAR on this northbridge is not (yet) supported.\n");
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return 1;
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}
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dmibar = map_physical(dmibar_phys, size);
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if (dmibar == NULL) {
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perror("Error mapping DMIBAR");
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exit(1);
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}
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printf("DMIBAR = 0x%08" PRIx64 " (MEM)\n\n", dmibar_phys);
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if (dmi_registers != NULL) {
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for (i = 0; i < size; i++) {
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switch (dmi_registers[i].size) {
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case 4:
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printf("dmibase+0x%04x: 0x%08x (%s)\n",
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dmi_registers[i].addr,
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*(uint32_t *)(dmibar+dmi_registers[i].addr),
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dmi_registers[i].name);
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break;
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case 2:
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printf("dmibase+0x%04x: 0x%04x (%s)\n",
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dmi_registers[i].addr,
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*(uint16_t *)(dmibar+dmi_registers[i].addr),
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dmi_registers[i].name);
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break;
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case 1:
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|
printf("dmibase+0x%04x: 0x%02x (%s)\n",
|
|
dmi_registers[i].addr,
|
|
*(uint8_t *)(dmibar+dmi_registers[i].addr),
|
|
dmi_registers[i].name);
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
for (i = 0; i < size; i += 4) {
|
|
if (*(uint32_t *)(dmibar + i))
|
|
printf("0x%04x: 0x%08x\n", i, *(uint32_t *)(dmibar+i));
|
|
}
|
|
}
|
|
|
|
unmap_physical((void *)dmibar, size);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* PCIe MMIO configuration space
|
|
*/
|
|
int print_pciexbar(struct pci_dev *nb)
|
|
{
|
|
uint64_t pciexbar_reg;
|
|
uint64_t pciexbar_phys;
|
|
volatile uint8_t *pciexbar;
|
|
int max_busses, devbase, i;
|
|
int bus, dev, fn;
|
|
|
|
printf("========= PCIEXBAR ========\n\n");
|
|
|
|
switch (nb->device_id) {
|
|
case PCI_DEVICE_ID_INTEL_82915:
|
|
case PCI_DEVICE_ID_INTEL_82945GM:
|
|
case PCI_DEVICE_ID_INTEL_82945GSE:
|
|
case PCI_DEVICE_ID_INTEL_82945P:
|
|
case PCI_DEVICE_ID_INTEL_82975X:
|
|
pciexbar_reg = pci_read_long(nb, 0x48);
|
|
break;
|
|
case PCI_DEVICE_ID_INTEL_82946:
|
|
case PCI_DEVICE_ID_INTEL_82965PM:
|
|
case PCI_DEVICE_ID_INTEL_82Q965:
|
|
case PCI_DEVICE_ID_INTEL_82Q35:
|
|
case PCI_DEVICE_ID_INTEL_82G33:
|
|
case PCI_DEVICE_ID_INTEL_82Q33:
|
|
case PCI_DEVICE_ID_INTEL_82X38:
|
|
case PCI_DEVICE_ID_INTEL_32X0:
|
|
case PCI_DEVICE_ID_INTEL_82X4X:
|
|
case PCI_DEVICE_ID_INTEL_ATOM_DXXX:
|
|
case PCI_DEVICE_ID_INTEL_ATOM_NXXX:
|
|
case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_D:
|
|
case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_M:
|
|
case PCI_DEVICE_ID_INTEL_CORE_2ND_GEN_E3:
|
|
case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_D:
|
|
case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_M:
|
|
case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_E3:
|
|
case PCI_DEVICE_ID_INTEL_CORE_3RD_GEN_015c:
|
|
case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_D:
|
|
case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_M:
|
|
case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_E3:
|
|
case PCI_DEVICE_ID_INTEL_CORE_4TH_GEN_U:
|
|
pciexbar_reg = pci_read_long(nb, 0x60);
|
|
pciexbar_reg |= ((uint64_t)pci_read_long(nb, 0x64)) << 32;
|
|
break;
|
|
case PCI_DEVICE_ID_INTEL_82810:
|
|
case PCI_DEVICE_ID_INTEL_82810_DC:
|
|
case PCI_DEVICE_ID_INTEL_82810E_DC:
|
|
case PCI_DEVICE_ID_INTEL_82865:
|
|
printf("Error: This northbridge does not have PCIEXBAR.\n");
|
|
return 1;
|
|
default:
|
|
printf("Error: Dumping PCIEXBAR on this northbridge is not (yet) supported.\n");
|
|
return 1;
|
|
}
|
|
|
|
if (!(pciexbar_reg & (1 << 0))) {
|
|
printf("PCIEXBAR register is disabled.\n");
|
|
return 0;
|
|
}
|
|
|
|
switch ((pciexbar_reg >> 1) & 3) {
|
|
case 0: // 256MB
|
|
pciexbar_phys = pciexbar_reg & (0xffULL << 28);
|
|
max_busses = 256;
|
|
break;
|
|
case 1: // 128M
|
|
pciexbar_phys = pciexbar_reg & (0x1ffULL << 27);
|
|
max_busses = 128;
|
|
break;
|
|
case 2: // 64M
|
|
pciexbar_phys = pciexbar_reg & (0x3ffULL << 26);
|
|
max_busses = 64;
|
|
break;
|
|
default: // RSVD
|
|
printf("Undefined address base. Bailing out.\n");
|
|
return 1;
|
|
}
|
|
|
|
printf("PCIEXBAR: 0x%08" PRIx64 "\n", pciexbar_phys);
|
|
|
|
pciexbar = map_physical(pciexbar_phys, (max_busses * 1024 * 1024));
|
|
|
|
if (pciexbar == NULL) {
|
|
perror("Error mapping PCIEXBAR");
|
|
exit(1);
|
|
}
|
|
|
|
for (bus = 0; bus < max_busses; bus++) {
|
|
for (dev = 0; dev < 32; dev++) {
|
|
for (fn = 0; fn < 8; fn++) {
|
|
devbase = (bus * 1024 * 1024) + (dev * 32 * 1024) + (fn * 4 * 1024);
|
|
|
|
if (*(uint16_t *)(pciexbar + devbase) == 0xffff)
|
|
continue;
|
|
|
|
/* This is a heuristics. Anyone got a better check? */
|
|
if( (*(uint32_t *)(pciexbar + devbase + 256) == 0xffffffff) &&
|
|
(*(uint32_t *)(pciexbar + devbase + 512) == 0xffffffff) ) {
|
|
#if DEBUG
|
|
printf("Skipped non-PCIe device %02x:%02x.%01x\n", bus, dev, fn);
|
|
#endif
|
|
continue;
|
|
}
|
|
|
|
printf("\nPCIe %02x:%02x.%01x extended config space:", bus, dev, fn);
|
|
for (i = 0; i < 4096; i++) {
|
|
if((i % 0x10) == 0)
|
|
printf("\n%04x:", i);
|
|
printf(" %02x", *(pciexbar+devbase+i));
|
|
}
|
|
printf("\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
unmap_physical((void *)pciexbar, (max_busses * 1024 * 1024));
|
|
|
|
return 0;
|
|
}
|