diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/GNB/PCIe/PcieMiscLib.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/GNB/PCIe/PcieMiscLib.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/GNB/PCIe/PcieMiscLib.c b/src/vendorcode/amd/agesa/f14/Proc/GNB/PCIe/PcieMiscLib.c new file mode 100644 index 0000000000..97eb370759 --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/GNB/PCIe/PcieMiscLib.c @@ -0,0 +1,158 @@ +/* $NoKeywords:$ */ +/** + * @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 "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; +} + |