| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * PCIe utility. Various supporting functions. |
| * |
| * |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: GNB |
| * @e \$Revision: 38931 $ @e \$Date: 2010-10-01 15:50:05 -0700 (Fri, 01 Oct 2010) $ |
| * |
| */ |
| /* |
| ***************************************************************************** |
| * |
| * Copyright (c) 2011, Advanced Micro Devices, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * * Neither the name of Advanced Micro Devices, Inc. nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * *************************************************************************** |
| * |
| */ |
| |
| /*---------------------------------------------------------------------------------------- |
| * M O D U L E S U S E D |
| *---------------------------------------------------------------------------------------- |
| */ |
| #include "AGESA.h" |
| #include "Ids.h" |
| #include "Gnb.h" |
| #include "GnbPcie.h" |
| #include "GnbPcieFamServices.h" |
| #include GNB_MODULE_DEFINITIONS (GnbCommonLib) |
| #include GNB_MODULE_DEFINITIONS (GnbPcieInitLibV1) |
| #include GNB_MODULE_DEFINITIONS (GnbPcieConfig) |
| #include "PcieMiscLib.h" |
| #include "GnbRegistersON.h" |
| #include "Filecode.h" |
| #define FILECODE PROC_GNB_PCIE_PCIEMISCLIB_FILECODE |
| /*---------------------------------------------------------------------------------------- |
| * D E F I N I T I O N S A N D M A C R O S |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| |
| /*---------------------------------------------------------------------------------------- |
| * T Y P E D E F S A N D S T R U C T U R E S |
| *---------------------------------------------------------------------------------------- |
| */ |
| typedef struct { |
| UINT32 Flags; |
| PCIE_LINK_SPEED_CAP LinkSpeedCapability; |
| } PCIE_GLOBAL_GEN_CAP_WORKSPACE; |
| |
| /*---------------------------------------------------------------------------------------- |
| * 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 |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Training state handling |
| * |
| * |
| * |
| * @param[in] Engine Pointer to engine config descriptor |
| * @param[in, out] Buffer Indicate if engine in non final state |
| * @param[in] Pcie Pointer to global PCIe configuration |
| * |
| */ |
| |
| VOID |
| STATIC |
| PcieUtilGlobalGenCapabilityCallback ( |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN OUT VOID *Buffer, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| PCIE_GLOBAL_GEN_CAP_WORKSPACE *GlobalGenCapability; |
| PCIE_LINK_SPEED_CAP LinkSpeedCapability; |
| PCIE_HOTPLUG_TYPE HotPlugType; |
| UINT32 Flags; |
| |
| Flags = PCIE_GLOBAL_GEN_CAP_ALL_PORTS; |
| GlobalGenCapability = (PCIE_GLOBAL_GEN_CAP_WORKSPACE*) Buffer; |
| LinkSpeedCapability = PcieGen1; |
| if (PcieConfigCheckPortStatus (Engine, INIT_STATUS_PCIE_TRAINING_SUCCESS)) { |
| Flags |= PCIE_GLOBAL_GEN_CAP_TRAINED_PORTS; |
| } |
| HotPlugType = Engine->Type.Port.PortData.LinkHotplug; |
| if ((HotPlugType == HotplugBasic) || (HotPlugType == HotplugServer) || (HotPlugType == HotplugEnhanced)) { |
| Flags |= PCIE_GLOBAL_GEN_CAP_HOTPLUG_PORTS; |
| } |
| if ((GlobalGenCapability->Flags & Flags) != 0) { |
| ASSERT ((GlobalGenCapability->Flags & (PCIE_PORT_GEN_CAP_MAX | PCIE_PORT_GEN_CAP_BOOT)) != 0); |
| LinkSpeedCapability = PcieFmGetLinkSpeedCap (GlobalGenCapability->Flags, Engine, Pcie); |
| if (GlobalGenCapability->LinkSpeedCapability < LinkSpeedCapability) { |
| GlobalGenCapability->LinkSpeedCapability = LinkSpeedCapability; |
| } |
| } |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Determine global GEN capability |
| * |
| * |
| * @param[in] Flags global GEN capability flags |
| * @param[in] Pcie Pointer to global PCIe configuration |
| * |
| */ |
| PCIE_LINK_SPEED_CAP |
| PcieUtilGlobalGenCapability ( |
| IN UINT32 Flags, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| PCIE_LINK_SPEED_CAP GlobalCapability; |
| PCIE_GLOBAL_GEN_CAP_WORKSPACE GlobalGenCap; |
| |
| GlobalGenCap.LinkSpeedCapability = PcieGen1; |
| GlobalGenCap.Flags = Flags; |
| PcieConfigRunProcForAllEngines ( |
| DESCRIPTOR_ALLOCATED | DESCRIPTOR_PCIE_ENGINE, |
| PcieUtilGlobalGenCapabilityCallback, |
| &GlobalGenCap, |
| Pcie |
| ); |
| |
| GlobalCapability = GlobalGenCap.LinkSpeedCapability; |
| |
| return GlobalCapability; |
| } |
| |