diff options
Diffstat (limited to 'QuarkSocPkg/QuarkNorthCluster/Library/QNCSmmLib/QNCSmmLib.c')
| -rw-r--r-- | QuarkSocPkg/QuarkNorthCluster/Library/QNCSmmLib/QNCSmmLib.c | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/QuarkSocPkg/QuarkNorthCluster/Library/QNCSmmLib/QNCSmmLib.c b/QuarkSocPkg/QuarkNorthCluster/Library/QNCSmmLib/QNCSmmLib.c deleted file mode 100644 index d6bba0bc1c..0000000000 --- a/QuarkSocPkg/QuarkNorthCluster/Library/QNCSmmLib/QNCSmmLib.c +++ /dev/null @@ -1,313 +0,0 @@ -/** @file
-QNC Smm Library Services that implements SMM Region access, S/W SMI generation and detection.
-
-Copyright (c) 2013-2016 Intel Corporation.
-
-SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-
-#include <Base.h>
-#include <IntelQNCRegs.h>
-#include <Library/DebugLib.h>
-#include <Library/PcdLib.h>
-#include <Library/IoLib.h>
-#include <Library/QNCAccessLib.h>
-
-#define BOOT_SERVICE_SOFTWARE_SMI_DATA 0
-#define RUNTIME_SOFTWARE_SMI_DATA 1
-
-/**
- Triggers a run time or boot time SMI.
-
- This function triggers a software SMM interrupt and set the APMC status with an 8-bit Data.
-
- @param Data The value to set the APMC status.
-
-**/
-VOID
-InternalTriggerSmi (
- IN UINT8 Data
- )
-{
- UINT16 GPE0BLK_Base;
- UINT32 NewValue;
-
- //
- // Get GPE0BLK_Base
- //
- GPE0BLK_Base = (UINT16)(LpcPciCfg32 (R_QNC_LPC_GPE0BLK) & 0xFFFF);
-
-
- //
- // Enable APM SMI
- //
- IoOr32 ((GPE0BLK_Base + R_QNC_GPE0BLK_SMIE), B_QNC_GPE0BLK_SMIE_APM);
-
- //
- // Enable SMI globally
- //
- NewValue = QNCPortRead (QUARK_NC_HOST_BRIDGE_SB_PORT_ID, QNC_MSG_FSBIC_REG_HMISC);
- NewValue |= SMI_EN;
- QNCPortWrite (QUARK_NC_HOST_BRIDGE_SB_PORT_ID, QNC_MSG_FSBIC_REG_HMISC, NewValue);
-
- //
- // Set APM_STS
- //
- IoWrite8 (PcdGet16 (PcdSmmDataPort), Data);
-
- //
- // Generate the APM SMI
- //
- IoWrite8 (PcdGet16 (PcdSmmActivationPort), PcdGet8 (PcdSmmActivationData));
-
- //
- // Clear the APM SMI Status Bit
- //
- IoWrite32 ((GPE0BLK_Base + R_QNC_GPE0BLK_SMIS), B_QNC_GPE0BLK_SMIS_APM);
-
- //
- // Set the EOS Bit
- //
- IoOr32 ((GPE0BLK_Base + R_QNC_GPE0BLK_SMIS), B_QNC_GPE0BLK_SMIS_EOS);
-}
-
-
-/**
- Triggers an SMI at boot time.
-
- This function triggers a software SMM interrupt at boot time.
-
-**/
-VOID
-EFIAPI
-TriggerBootServiceSoftwareSmi (
- VOID
- )
-{
- InternalTriggerSmi (BOOT_SERVICE_SOFTWARE_SMI_DATA);
-}
-
-
-/**
- Triggers an SMI at run time.
-
- This function triggers a software SMM interrupt at run time.
-
-**/
-VOID
-EFIAPI
-TriggerRuntimeSoftwareSmi (
- VOID
- )
-{
- InternalTriggerSmi (RUNTIME_SOFTWARE_SMI_DATA);
-}
-
-
-/**
- Gets the software SMI data.
-
- This function tests if a software SMM interrupt happens. If a software SMI happens,
- it retrieves the SMM data and returns it as a non-negative value; otherwise a negative
- value is returned.
-
- @return Data The data retrieved from SMM data port in case of a software SMI;
- otherwise a negative value.
-
-**/
-INTN
-InternalGetSwSmiData (
- VOID
- )
-{
- UINT8 SmiStatus;
- UINT8 Data;
-
- SmiStatus = IoRead8 ((UINT16)(LpcPciCfg32 (R_QNC_LPC_GPE0BLK) & 0xFFFF) + R_QNC_GPE0BLK_SMIS);
- if (((SmiStatus & B_QNC_GPE0BLK_SMIS_APM) != 0) &&
- (IoRead8 (PcdGet16 (PcdSmmActivationPort)) == PcdGet8 (PcdSmmActivationData))) {
- Data = IoRead8 (PcdGet16 (PcdSmmDataPort));
- return (INTN)(UINTN)Data;
- }
-
- return -1;
-}
-
-
-/**
- Test if a boot time software SMI happened.
-
- This function tests if a software SMM interrupt happened. If a software SMM interrupt happened and
- it was triggered at boot time, it returns TRUE. Otherwise, it returns FALSE.
-
- @retval TRUE A software SMI triggered at boot time happened.
- @retval FLASE No software SMI happened or the software SMI was triggered at run time.
-
-**/
-BOOLEAN
-EFIAPI
-IsBootServiceSoftwareSmi (
- VOID
- )
-{
- return (BOOLEAN) (InternalGetSwSmiData () == BOOT_SERVICE_SOFTWARE_SMI_DATA);
-}
-
-
-/**
- Test if a run time software SMI happened.
-
- This function tests if a software SMM interrupt happened. If a software SMM interrupt happened and
- it was triggered at run time, it returns TRUE. Otherwise, it returns FALSE.
-
- @retval TRUE A software SMI triggered at run time happened.
- @retval FLASE No software SMI happened or the software SMI was triggered at boot time.
-
-**/
-BOOLEAN
-EFIAPI
-IsRuntimeSoftwareSmi (
- VOID
- )
-{
- return (BOOLEAN) (InternalGetSwSmiData () == RUNTIME_SOFTWARE_SMI_DATA);
-}
-
-
-
-/**
-
- Clear APM SMI Status Bit; Set the EOS bit.
-
-**/
-VOID
-EFIAPI
-ClearSmi (
- VOID
- )
-{
-
- UINT16 GPE0BLK_Base;
-
- //
- // Get GpeBase
- //
- GPE0BLK_Base = (UINT16)(LpcPciCfg32 (R_QNC_LPC_GPE0BLK) & 0xFFFF);
-
- //
- // Clear the APM SMI Status Bit
- //
- IoOr16 (GPE0BLK_Base + R_QNC_GPE0BLK_SMIS, B_QNC_GPE0BLK_SMIS_APM);
-
- //
- // Set the EOS Bit
- //
- IoOr32 (GPE0BLK_Base + R_QNC_GPE0BLK_SMIS, B_QNC_GPE0BLK_SMIS_EOS);
-}
-
-/**
- This routine is the chipset code that accepts a request to "open" a region of SMRAM.
- The region could be legacy ABSEG, HSEG, or TSEG near top of physical memory.
- The use of "open" means that the memory is visible from all boot-service
- and SMM agents.
-
- @retval FALSE Cannot open a locked SMRAM region
- @retval TRUE Success to open SMRAM region.
-**/
-BOOLEAN
-EFIAPI
-QNCOpenSmramRegion (
- VOID
- )
-{
- UINT32 Smram;
-
- // Read the SMRAM register
- Smram = QncHsmmcRead ();
-
- //
- // Is the platform locked?
- //
- if (Smram & SMM_LOCKED) {
- // Cannot Open a locked region
- DEBUG ((EFI_D_WARN, "Cannot open a locked SMRAM region\n"));
- return FALSE;
- }
-
- //
- // Open all SMRAM regions for Host access only
- //
- Smram |= (SMM_WRITE_OPEN | SMM_READ_OPEN); // Open for Host.
- Smram &= ~(NON_HOST_SMM_WR_OPEN | NON_HOST_SMM_RD_OPEN); // Not for others.
-
- //
- // Write the SMRAM register
- //
- QncHsmmcWrite (Smram);
-
- return TRUE;
-}
-
-/**
- This routine is the chipset code that accepts a request to "close" a region of SMRAM.
- The region could be legacy AB or TSEG near top of physical memory.
- The use of "close" means that the memory is only visible from SMM agents,
- not from BS or RT code.
-
- @retval FALSE Cannot open a locked SMRAM region
- @retval TRUE Success to open SMRAM region.
-**/
-BOOLEAN
-EFIAPI
-QNCCloseSmramRegion (
- VOID
- )
-{
- UINT32 Smram;
-
- // Read the SMRAM register.
- Smram = QncHsmmcRead ();
-
- //
- // Is the platform locked?
- //
- if(Smram & SMM_LOCKED) {
- // Cannot Open a locked region
- DEBUG ((EFI_D_WARN, "Cannot close a locked SMRAM region\n"));
- return FALSE;
- }
-
- Smram &= (~(SMM_WRITE_OPEN | SMM_READ_OPEN | NON_HOST_SMM_WR_OPEN | NON_HOST_SMM_RD_OPEN));
-
- QncHsmmcWrite (Smram);
-
- return TRUE;
-}
-
-/**
- This routine is the chipset code that accepts a request to "lock" SMRAM.
- The region could be legacy AB or TSEG near top of physical memory.
- The use of "lock" means that the memory can no longer be opened
- to BS state.
-**/
-VOID
-EFIAPI
-QNCLockSmramRegion (
- VOID
- )
-{
- UINT32 Smram;
-
- // Read the SMRAM register.
- Smram = QncHsmmcRead ();
- if(Smram & SMM_LOCKED) {
- DEBUG ((EFI_D_WARN, "SMRAM region already locked!\n"));
- }
- Smram |= SMM_LOCKED;
-
- QncHsmmcWrite (Smram);
-
- return;
-}
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