diff options
Diffstat (limited to 'Silicon/Intel/KabylakeSiliconPkg/Pch/Library/PeiPchResetLib/PchReset.c')
| -rw-r--r-- | Silicon/Intel/KabylakeSiliconPkg/Pch/Library/PeiPchResetLib/PchReset.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/Silicon/Intel/KabylakeSiliconPkg/Pch/Library/PeiPchResetLib/PchReset.c b/Silicon/Intel/KabylakeSiliconPkg/Pch/Library/PeiPchResetLib/PchReset.c new file mode 100644 index 0000000000..79f3f779dc --- /dev/null +++ b/Silicon/Intel/KabylakeSiliconPkg/Pch/Library/PeiPchResetLib/PchReset.c @@ -0,0 +1,194 @@ +/** @file
+ PCH RESET PEIM DRIVER.
+
+Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that accompanies this distribution.
+The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+#include <PiPei.h>
+#include <Library/IoLib.h>
+#include <Library/HobLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <PchAccess.h>
+#include <Ppi/Reset2.h>
+#include <Ppi/PchReset.h>
+#include <Library/ResetSystemLib.h>
+#include <PchResetPlatformSpecific.h>
+
+VOID
+EFIAPI
+ResetPlatformSpecific (
+ IN EFI_STATUS ResetStatus,
+ IN UINTN DataSize,
+ IN VOID *ResetData OPTIONAL
+ );
+
+
+/**
+ Resets the entire platform.
+
+ @param[in] ResetType UEFI defined reset type.
+ @param[in] ResetStatus The status code for the reset.
+ @param[in] DataSize The size of ResetData in bytes.
+ @param[in] ResetData Optional element used to introduce a platform specific reset.
+ The exact type of the reset is defined by the EFI_GUID that follows
+ the Null-terminated Unicode string.
+
+**/
+VOID
+EFIAPI
+ResetSystem (
+ IN EFI_RESET_TYPE ResetType,
+ IN EFI_STATUS ResetStatus,
+ IN UINTN DataSize,
+ IN VOID *ResetData OPTIONAL
+ )
+{
+ switch (ResetType) {
+ case EfiResetWarm:
+ ResetWarm ();
+ break;
+
+ case EfiResetCold:
+ ResetCold ();
+ break;
+
+ case EfiResetShutdown:
+ ResetShutdown ();
+ return;
+
+ case EfiResetPlatformSpecific:
+ ResetPlatformSpecific (ResetStatus, DataSize, ResetData);
+ return;
+
+ default:
+ return;
+ }
+
+ //
+ // Given we should have reset getting here would be bad
+ //
+ ASSERT (FALSE);
+}
+
+/**
+ Execute Pch Reset from the host controller.
+
+ @param[in] This Pointer to the PCH_RESET_PPI instance.
+ @param[in] PchResetType Pch Reset Types which includes PchColdReset, PchWarmReset,
+ PchShutdownReset, PchGlobalReset
+
+ @retval EFI_SUCCESS Successfully completed.
+ @retval EFI_INVALID_PARAMETER If ResetType is invalid.
+**/
+EFI_STATUS
+EFIAPI
+Reset (
+ IN PCH_RESET_PPI *This,
+ IN PCH_RESET_TYPE PchResetType
+ )
+{
+ PCH_RESET_DATA ResetData;
+
+ switch (PchResetType) {
+ case PchColdReset:
+ ResetCold();
+ break;
+
+ case PchWarmReset:
+ ResetWarm();
+ break;
+
+ case PchShutdownReset:
+ ResetShutdown();
+ break;
+
+ case PchGlobalReset:
+ CopyMem (&ResetData.Guid, &gPchGlobalResetGuid, sizeof (EFI_GUID));
+ StrCpyS (ResetData.Description, PCH_RESET_DATA_STRING_MAX_LENGTH, PCH_PLATFORM_SPECIFIC_RESET_STRING);
+ ResetPlatformSpecific (EFI_SUCCESS, sizeof (PCH_RESET_DATA), &ResetData);
+ break;
+
+ default:
+ return EFI_INVALID_PARAMETER;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Initialize PCH Reset APIs
+
+ @retval EFI_SUCCESS APIs are installed successfully
+ @retval EFI_OUT_OF_RESOURCES Can't allocate pool
+**/
+EFI_STATUS
+EFIAPI
+PchInitializeReset (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ PCH_RESET_PPI *PeiPchResetPpi;
+ EFI_PEI_PPI_DESCRIPTOR *PeiPchResetDescriptor;
+ EFI_PEI_RESET2_PPI *EfiPeiReset2Ppi;
+ EFI_PEI_PPI_DESCRIPTOR *EfiPeiReset2Descriptor;
+
+ DEBUG ((DEBUG_INFO, "PchInitializeReset() Start\n"));
+
+ PeiPchResetDescriptor = (EFI_PEI_PPI_DESCRIPTOR *) AllocateZeroPool (sizeof (EFI_PEI_PPI_DESCRIPTOR));
+ PeiPchResetPpi = (PCH_RESET_PPI *) AllocateZeroPool (sizeof (PCH_RESET_PPI));
+ if ((PeiPchResetDescriptor == NULL) ||
+ (PeiPchResetPpi == NULL)) {
+ ASSERT (FALSE);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ ///
+ /// Initialize the Reset ppi instance
+ ///
+ PeiPchResetPpi->Reset = Reset;
+ PeiPchResetDescriptor->Flags = EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST;
+ PeiPchResetDescriptor->Guid = &gPchResetPpiGuid;
+ PeiPchResetDescriptor->Ppi = PeiPchResetPpi;
+
+ ///
+ /// Install the PCH RESET PPI
+ ///
+ Status = PeiServicesInstallPpi (PeiPchResetDescriptor);
+ ASSERT_EFI_ERROR (Status);
+
+ EfiPeiReset2Descriptor = (EFI_PEI_PPI_DESCRIPTOR *) AllocateZeroPool (sizeof (EFI_PEI_PPI_DESCRIPTOR));
+ EfiPeiReset2Ppi = (EFI_PEI_RESET2_PPI *) AllocateZeroPool (sizeof (EFI_PEI_RESET2_PPI));
+ if ((EfiPeiReset2Descriptor == NULL) ||
+ (EfiPeiReset2Ppi == NULL)) {
+ ASSERT (FALSE);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ ///
+ /// Initialize the EFI Reset2 ppi instance
+ ///
+ EfiPeiReset2Ppi->ResetSystem = ResetSystem;
+
+ EfiPeiReset2Descriptor->Flags = EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST;
+ EfiPeiReset2Descriptor->Guid = &gEfiPeiReset2PpiGuid;
+ EfiPeiReset2Descriptor->Ppi = EfiPeiReset2Ppi;
+
+ Status = PeiServicesInstallPpi (EfiPeiReset2Descriptor);
+ ASSERT_EFI_ERROR (Status);
+
+ DEBUG ((DEBUG_INFO, "PchInitializeReset() End\n"));
+
+ return Status;
+}
+
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