aboutsummaryrefslogtreecommitdiff
path: root/src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbPsi.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbPsi.c')
-rw-r--r--src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbPsi.c278
1 files changed, 278 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbPsi.c b/src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbPsi.c
new file mode 100644
index 0000000000..7d9d4d2a96
--- /dev/null
+++ b/src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbPsi.c
@@ -0,0 +1,278 @@
+/* $NoKeywords:$ */
+/**
+ * @file
+ *
+ * AMD Family_16 Kabini PSI Initialization
+ *
+ * Enables Power Status Indicator (PSI) feature
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project: AGESA
+ * @e sub-project: CPU/Family/0x16/KB
+ * @e \$Revision: 84150 $ @e \$Date: 2012-12-12 15:46:25 -0600 (Wed, 12 Dec 2012) $
+ *
+ */
+/*
+ ******************************************************************************
+ *
+ * Copyright (c) 2008 - 2013, 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 "amdlib.h"
+#include "cpuRegisters.h"
+#include "cpuF16PowerMgmt.h"
+#include "F16KbPowerMgmt.h"
+#include "cpuFeatures.h"
+#include "cpuServices.h"
+#include "GeneralServices.h"
+#include "cpuFamilyTranslation.h"
+#include "CommonReturns.h"
+#include "cpuPsi.h"
+#include "Filecode.h"
+CODE_GROUP (G2_PEI)
+RDATA_GROUP (G2_PEI)
+
+#define FILECODE PROC_CPU_FAMILY_0X16_KB_F16KBPSI_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
+ *----------------------------------------------------------------------------------------
+ */
+
+/*----------------------------------------------------------------------------------------
+ * 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
+ *----------------------------------------------------------------------------------------
+ */
+
+VOID
+STATIC
+F16KbPmVrmLowPowerModeEnable (
+ IN CPU_SPECIFIC_SERVICES *FamilySpecificServices,
+ IN PLATFORM_CONFIGURATION *PlatformConfig,
+ IN PCI_ADDR PciAddress,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ );
+
+/*----------------------------------------------------------------------------------------
+ * E X P O R T E D F U N C T I O N S
+ *----------------------------------------------------------------------------------------
+ */
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ * Entry point for enabling Power Status Indicator
+ *
+ * This function must be run after all P-State routines have been executed
+ *
+ * @param[in] PsiServices The current CPU's family services.
+ * @param[in] EntryPoint Timepoint designator.
+ * @param[in] PlatformConfig Contains the runtime modifiable feature input data.
+ * @param[in] StdHeader Config handle for library and services.
+ *
+ * @retval AGESA_SUCCESS Always succeeds.
+ *
+ */
+AGESA_STATUS
+STATIC
+F16KbInitializePsi (
+ IN PSI_FAMILY_SERVICES *PsiServices,
+ IN UINT64 EntryPoint,
+ IN PLATFORM_CONFIGURATION *PlatformConfig,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ )
+{
+ PCI_ADDR PciAddress;
+ CPU_SPECIFIC_SERVICES *FamilySpecificServices;
+
+ if ((EntryPoint & (CPU_FEAT_AFTER_POST_MTRR_SYNC | CPU_FEAT_AFTER_RESUME_MTRR_SYNC)) != 0) {
+ GetCpuServicesOfCurrentCore ((CONST CPU_SPECIFIC_SERVICES **)&FamilySpecificServices, StdHeader);
+ PciAddress.AddressValue = MAKE_SBDFO (0, 0, 24, 0, 0);
+ // Configure PsiVid
+ F16KbPmVrmLowPowerModeEnable (FamilySpecificServices, PlatformConfig, PciAddress, StdHeader);
+ }
+
+ return AGESA_SUCCESS;
+}
+
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ * Sets up PSI_L operation.
+ *
+ * This function implements the LowPowerThreshold parameter.
+ *
+ * @param[in] FamilySpecificServices The current Family Specific Services.
+ * @param[in] PlatformConfig Contains the runtime modifiable feature input data.
+ * @param[in] PciAddress Segment, bus, device number of the node to transition.
+ * @param[in] StdHeader Config handle for library and services.
+ *
+ */
+VOID
+STATIC
+F16KbPmVrmLowPowerModeEnable (
+ IN CPU_SPECIFIC_SERVICES *FamilySpecificServices,
+ IN PLATFORM_CONFIGURATION *PlatformConfig,
+ IN PCI_ADDR PciAddress,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ )
+{
+ PSTATE_MSR PstateMsr;
+ CLK_PWR_TIMING_CTRL2_REGISTER ClkPwrTimingCtrl2;
+ POWER_CTRL_MISC_REGISTER PwrCtrlMisc;
+ UINT32 CoreVrmLowPowerThreshold;
+ UINT32 Pstate;
+ UINT32 HwPstateMaxVal;
+ UINT32 PstateCurrent;
+ UINT32 NextPstateCurrent;
+ UINT32 PreviousVid;
+ UINT32 CurrentVid;
+
+ NB_PSTATE_REGISTER NbPstateReg;
+ NB_PSTATE_CTRL_REGISTER NbPsCtrl;
+ MISC_VOLTAGE_REGISTER MiscVoltageReg;
+ UINT32 NbVrmLowPowerThreshold;
+ UINT32 NbPstate;
+ UINT32 NbPstateMaxVal;
+ UINT32 NbPstateCurrent;
+ UINT32 NextNbPstateCurrent;
+ UINT32 PreviousNbVid;
+ UINT32 CurrentNbVid;
+
+ IDS_HDT_CONSOLE (CPU_TRACE, " F16KbPmVrmLowPowerModeEnable\n");
+
+ if (PlatformConfig->VrmProperties[CoreVrm].LowPowerThreshold != 0) {
+ // Set up PSI0_L for VDD
+ CoreVrmLowPowerThreshold = PlatformConfig->VrmProperties[CoreVrm].LowPowerThreshold;
+ IDS_HDT_CONSOLE (CPU_TRACE, " Core VRM - LowPowerThreshold: %d\n", CoreVrmLowPowerThreshold);
+ PreviousVid = 0xFF;
+ CurrentVid = 0xFF;
+
+ PciAddress.AddressValue = CPTC2_PCI_ADDR;
+ LibAmdPciRead (AccessWidth32, PciAddress, &ClkPwrTimingCtrl2, StdHeader);
+ HwPstateMaxVal = ClkPwrTimingCtrl2.HwPstateMaxVal;
+ ASSERT (HwPstateMaxVal < NM_PS_REG);
+
+ IDS_HDT_CONSOLE (CPU_TRACE, " HwPstateMaxVal %d\n", HwPstateMaxVal);
+ // Check P-state from P0 to HwPstateMaxVal
+ for (Pstate = 0; Pstate <= HwPstateMaxVal; Pstate++) {
+ FamilySpecificServices->GetProcIddMax (FamilySpecificServices, (UINT8) Pstate, &PstateCurrent, StdHeader);
+
+ LibAmdMsrRead ((UINT32) (Pstate + PS_REG_BASE), (UINT64 *) &PstateMsr, StdHeader);
+ CurrentVid = (UINT32) PstateMsr.CpuVid;
+
+ if (Pstate == HwPstateMaxVal) {
+ NextPstateCurrent = 0;
+ } else {
+ // Check P-state from P1 to HwPstateMaxVal
+ FamilySpecificServices->GetProcIddMax (FamilySpecificServices, (UINT8) (Pstate + 1), &NextPstateCurrent, StdHeader);
+ }
+
+ if ((PstateCurrent <= CoreVrmLowPowerThreshold) &&
+ (NextPstateCurrent <= CoreVrmLowPowerThreshold) &&
+ (CurrentVid != PreviousVid)) {
+ // Program PsiVid and PsiVidEn if PSI state is found and stop searching.
+ PciAddress.AddressValue = PW_CTL_MISC_PCI_ADDR;
+ LibAmdPciRead (AccessWidth32, PciAddress, &PwrCtrlMisc, StdHeader);
+ PwrCtrlMisc.PsiVid = CurrentVid;
+ PwrCtrlMisc.PsiVidEn = 1;
+ LibAmdPciWrite (AccessWidth32, PciAddress, &PwrCtrlMisc, StdHeader);
+ IDS_HDT_CONSOLE (CPU_TRACE, " PsiVid is enabled at P-state %d. PsiVid: %d\n", Pstate, CurrentVid);
+ break;
+ } else {
+ PstateCurrent = NextPstateCurrent;
+ PreviousVid = CurrentVid;
+ }
+ }
+ }
+
+ if (PlatformConfig->VrmProperties[NbVrm].LowPowerThreshold != 0) {
+ // Set up NBPSI0_L for VDDNB
+ NbVrmLowPowerThreshold = PlatformConfig->VrmProperties[NbVrm].LowPowerThreshold;
+ IDS_HDT_CONSOLE (CPU_TRACE, " NB VRM - LowPowerThreshold: %d\n", NbVrmLowPowerThreshold);
+ PreviousNbVid = 0xFF;
+ CurrentNbVid = 0xFF;
+
+ PciAddress.AddressValue = NB_PSTATE_CTRL_PCI_ADDR;
+ LibAmdPciRead (AccessWidth32, PciAddress, &NbPsCtrl, StdHeader);
+ NbPstateMaxVal = NbPsCtrl.NbPstateMaxVal;
+ ASSERT (NbPstateMaxVal < NM_NB_PS_REG);
+
+ IDS_HDT_CONSOLE (CPU_TRACE, " NbPstateMaxVal %d\n", NbPstateMaxVal);
+ for (NbPstate = 0; NbPstate <= NbPstateMaxVal; NbPstate++) {
+ // Check only valid NB P-state
+ if (FamilySpecificServices->GetNbIddMax (FamilySpecificServices, (UINT8) NbPstate, &NbPstateCurrent, StdHeader) != TRUE) {
+ continue;
+ }
+
+ PciAddress.Address.Register = (NB_PSTATE_0 + (sizeof (NB_PSTATE_REGISTER) * NbPstate));
+ LibAmdPciRead (AccessWidth32, PciAddress, &NbPstateReg, StdHeader);
+ CurrentNbVid = (UINT32) GetF16KbNbVid (&NbPstateReg);
+
+ if (NbPstate == NbPstateMaxVal) {
+ NextNbPstateCurrent = 0;
+ } else {
+ // Check only valid NB P-state
+ if (FamilySpecificServices->GetNbIddMax (FamilySpecificServices, (UINT8) (NbPstate + 1), &NextNbPstateCurrent, StdHeader) != TRUE) {
+ continue;
+ }
+ }
+
+ if ((NbPstateCurrent <= NbVrmLowPowerThreshold) &&
+ (NextNbPstateCurrent <= NbVrmLowPowerThreshold) &&
+ (CurrentNbVid != PreviousNbVid)) {
+ // Program NbPsi0Vid and NbPsi0VidEn if PSI state is found and stop searching.
+ PciAddress.AddressValue = MISC_VOLTAGES_PCI_ADDR;
+ LibAmdPciRead (AccessWidth32, PciAddress, &MiscVoltageReg, StdHeader);
+ MiscVoltageReg.NbPsi0Vid = CurrentNbVid;
+ MiscVoltageReg.NbPsi0VidEn = 1;
+ LibAmdPciWrite (AccessWidth32, PciAddress, &MiscVoltageReg, StdHeader);
+ IDS_HDT_CONSOLE (CPU_TRACE, " NbPsi0Vid is enabled at NB P-state %d. NbPsi0Vid: %d\n", NbPstate, CurrentNbVid);
+ break;
+ } else {
+ PreviousNbVid = CurrentNbVid;
+ }
+ }
+ }
+}
+
+
+CONST PSI_FAMILY_SERVICES ROMDATA F16KbPsiSupport =
+{
+ 0,
+ (PF_PSI_IS_SUPPORTED) CommonReturnTrue,
+ F16KbInitializePsi
+};