Frank Vibrans | 2b4c831 | 2011-02-14 18:30:54 +0000 | [diff] [blame] | 1 | /* $NoKeywords:$ */ |
| 2 | /** |
| 3 | * @file |
| 4 | * |
| 5 | * PCIe utility. Various supporting functions. |
| 6 | * |
| 7 | * |
| 8 | * |
| 9 | * @xrefitem bom "File Content Label" "Release Content" |
| 10 | * @e project: AGESA |
| 11 | * @e sub-project: GNB |
| 12 | * @e \$Revision: 38931 $ @e \$Date: 2010-10-01 15:50:05 -0700 (Fri, 01 Oct 2010) $ |
| 13 | * |
| 14 | */ |
| 15 | /* |
| 16 | ***************************************************************************** |
| 17 | * |
| 18 | * Copyright (c) 2011, Advanced Micro Devices, Inc. |
| 19 | * All rights reserved. |
Edward O'Callaghan | 1542a6f | 2014-07-06 19:24:06 +1000 | [diff] [blame] | 20 | * |
Frank Vibrans | 2b4c831 | 2011-02-14 18:30:54 +0000 | [diff] [blame] | 21 | * Redistribution and use in source and binary forms, with or without |
| 22 | * modification, are permitted provided that the following conditions are met: |
| 23 | * * Redistributions of source code must retain the above copyright |
| 24 | * notice, this list of conditions and the following disclaimer. |
| 25 | * * Redistributions in binary form must reproduce the above copyright |
| 26 | * notice, this list of conditions and the following disclaimer in the |
| 27 | * documentation and/or other materials provided with the distribution. |
Edward O'Callaghan | 1542a6f | 2014-07-06 19:24:06 +1000 | [diff] [blame] | 28 | * * Neither the name of Advanced Micro Devices, Inc. nor the names of |
| 29 | * its contributors may be used to endorse or promote products derived |
Frank Vibrans | 2b4c831 | 2011-02-14 18:30:54 +0000 | [diff] [blame] | 30 | * from this software without specific prior written permission. |
Edward O'Callaghan | 1542a6f | 2014-07-06 19:24:06 +1000 | [diff] [blame] | 31 | * |
Frank Vibrans | 2b4c831 | 2011-02-14 18:30:54 +0000 | [diff] [blame] | 32 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| 33 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 34 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 35 | * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY |
| 36 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 37 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 38 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 39 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 40 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 41 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Edward O'Callaghan | 1542a6f | 2014-07-06 19:24:06 +1000 | [diff] [blame] | 42 | * |
Frank Vibrans | 2b4c831 | 2011-02-14 18:30:54 +0000 | [diff] [blame] | 43 | * *************************************************************************** |
| 44 | * |
| 45 | */ |
| 46 | |
| 47 | /*---------------------------------------------------------------------------------------- |
| 48 | * M O D U L E S U S E D |
| 49 | *---------------------------------------------------------------------------------------- |
| 50 | */ |
| 51 | #include "AGESA.h" |
| 52 | #include "Ids.h" |
| 53 | #include "Gnb.h" |
| 54 | #include "GnbPcie.h" |
| 55 | #include "GnbPcieFamServices.h" |
| 56 | #include GNB_MODULE_DEFINITIONS (GnbCommonLib) |
| 57 | #include GNB_MODULE_DEFINITIONS (GnbPcieInitLibV1) |
| 58 | #include GNB_MODULE_DEFINITIONS (GnbPcieConfig) |
efdesign98 | 84cbce2 | 2011-08-04 12:09:17 -0600 | [diff] [blame] | 59 | #include "PcieMiscLib.h" |
Frank Vibrans | 2b4c831 | 2011-02-14 18:30:54 +0000 | [diff] [blame] | 60 | #include "GnbRegistersON.h" |
| 61 | #include "Filecode.h" |
| 62 | #define FILECODE PROC_GNB_PCIE_PCIEMISCLIB_FILECODE |
| 63 | /*---------------------------------------------------------------------------------------- |
| 64 | * D E F I N I T I O N S A N D M A C R O S |
| 65 | *---------------------------------------------------------------------------------------- |
| 66 | */ |
| 67 | |
| 68 | |
| 69 | /*---------------------------------------------------------------------------------------- |
| 70 | * T Y P E D E F S A N D S T R U C T U R E S |
| 71 | *---------------------------------------------------------------------------------------- |
| 72 | */ |
| 73 | typedef struct { |
| 74 | UINT32 Flags; |
| 75 | PCIE_LINK_SPEED_CAP LinkSpeedCapability; |
| 76 | } PCIE_GLOBAL_GEN_CAP_WORKSPACE; |
| 77 | |
| 78 | /*---------------------------------------------------------------------------------------- |
| 79 | * P R O T O T Y P E S O F L O C A L F U N C T I O N S |
| 80 | *---------------------------------------------------------------------------------------- |
| 81 | */ |
| 82 | |
| 83 | |
| 84 | /*----------------------------------------------------------------------------------------*/ |
| 85 | /** |
| 86 | * Training state handling |
| 87 | * |
| 88 | * |
| 89 | * |
| 90 | * @param[in] Engine Pointer to engine config descriptor |
| 91 | * @param[in, out] Buffer Indicate if engine in non final state |
| 92 | * @param[in] Pcie Pointer to global PCIe configuration |
| 93 | * |
| 94 | */ |
| 95 | |
| 96 | VOID |
| 97 | STATIC |
| 98 | PcieUtilGlobalGenCapabilityCallback ( |
| 99 | IN PCIe_ENGINE_CONFIG *Engine, |
| 100 | IN OUT VOID *Buffer, |
| 101 | IN PCIe_PLATFORM_CONFIG *Pcie |
| 102 | ) |
| 103 | { |
| 104 | PCIE_GLOBAL_GEN_CAP_WORKSPACE *GlobalGenCapability; |
| 105 | PCIE_LINK_SPEED_CAP LinkSpeedCapability; |
| 106 | PCIE_HOTPLUG_TYPE HotPlugType; |
| 107 | UINT32 Flags; |
| 108 | |
| 109 | Flags = PCIE_GLOBAL_GEN_CAP_ALL_PORTS; |
| 110 | GlobalGenCapability = (PCIE_GLOBAL_GEN_CAP_WORKSPACE*) Buffer; |
| 111 | LinkSpeedCapability = PcieGen1; |
| 112 | if (PcieConfigCheckPortStatus (Engine, INIT_STATUS_PCIE_TRAINING_SUCCESS)) { |
| 113 | Flags |= PCIE_GLOBAL_GEN_CAP_TRAINED_PORTS; |
| 114 | } |
| 115 | HotPlugType = Engine->Type.Port.PortData.LinkHotplug; |
| 116 | if ((HotPlugType == HotplugBasic) || (HotPlugType == HotplugServer) || (HotPlugType == HotplugEnhanced)) { |
| 117 | Flags |= PCIE_GLOBAL_GEN_CAP_HOTPLUG_PORTS; |
| 118 | } |
| 119 | if ((GlobalGenCapability->Flags & Flags) != 0) { |
| 120 | ASSERT ((GlobalGenCapability->Flags & (PCIE_PORT_GEN_CAP_MAX | PCIE_PORT_GEN_CAP_BOOT)) != 0); |
| 121 | LinkSpeedCapability = PcieFmGetLinkSpeedCap (GlobalGenCapability->Flags, Engine, Pcie); |
| 122 | if (GlobalGenCapability->LinkSpeedCapability < LinkSpeedCapability) { |
| 123 | GlobalGenCapability->LinkSpeedCapability = LinkSpeedCapability; |
| 124 | } |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | /*----------------------------------------------------------------------------------------*/ |
| 129 | /** |
| 130 | * Determine global GEN capability |
| 131 | * |
| 132 | * |
| 133 | * @param[in] Flags global GEN capability flags |
| 134 | * @param[in] Pcie Pointer to global PCIe configuration |
| 135 | * |
| 136 | */ |
| 137 | PCIE_LINK_SPEED_CAP |
| 138 | PcieUtilGlobalGenCapability ( |
| 139 | IN UINT32 Flags, |
| 140 | IN PCIe_PLATFORM_CONFIG *Pcie |
| 141 | ) |
| 142 | { |
| 143 | PCIE_LINK_SPEED_CAP GlobalCapability; |
| 144 | PCIE_GLOBAL_GEN_CAP_WORKSPACE GlobalGenCap; |
| 145 | |
| 146 | GlobalGenCap.LinkSpeedCapability = PcieGen1; |
| 147 | GlobalGenCap.Flags = Flags; |
| 148 | PcieConfigRunProcForAllEngines ( |
| 149 | DESCRIPTOR_ALLOCATED | DESCRIPTOR_PCIE_ENGINE, |
| 150 | PcieUtilGlobalGenCapabilityCallback, |
| 151 | &GlobalGenCap, |
| 152 | Pcie |
| 153 | ); |
| 154 | |
| 155 | GlobalCapability = GlobalGenCap.LinkSpeedCapability; |
| 156 | |
| 157 | return GlobalCapability; |
| 158 | } |
| 159 | |