QuarkSocPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / QuarkSocPkg / QuarkNorthCluster / Smm / DxeSmm / QncSmmDispatcher / QNC / QNCSmmSw.c

/** @file\r
File to contain all the hardware specific stuff for the Smm Sw dispatch protocol.\r
\r
Copyright (c) 2013-2015 Intel Corporation.\r
\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
\r
**/\r
\r
//\r
// Include common header file for this module.\r
//\r
#include "CommonHeader.h"\r
\r
#include "QNCSmmHelpers.h"\r
\r
EFI_SMM_CPU_PROTOCOL  *mSmmCpu = NULL;\r
\r
CONST QNC_SMM_SOURCE_DESC SW_SOURCE_DESC = {\r
  QNC_SMM_NO_FLAGS,\r
  {\r
    {\r
      {GPE_ADDR_TYPE, {R_QNC_GPE0BLK_SMIE}}, S_QNC_GPE0BLK_SMIE, N_QNC_GPE0BLK_SMIE_APM\r
    },\r
    NULL_BIT_DESC_INITIALIZER\r
  },\r
  {\r
    {\r
      {GPE_ADDR_TYPE, {R_QNC_GPE0BLK_SMIS}}, S_QNC_GPE0BLK_SMIS, N_QNC_GPE0BLK_SMIS_APM\r
    }\r
  }\r
};\r
\r
VOID\r
SwGetContext(\r
  IN  DATABASE_RECORD    *Record,\r
  OUT QNC_SMM_CONTEXT    *Context\r
  )\r
{\r
  Context->Sw.SwSmiInputValue = IoRead8 (R_APM_CNT);\r
}\r
\r
BOOLEAN\r
SwCmpContext (\r
  IN QNC_SMM_CONTEXT     *Context1,\r
  IN QNC_SMM_CONTEXT     *Context2\r
  )\r
{\r
  return (BOOLEAN)( Context1->Sw.SwSmiInputValue == Context2->Sw.SwSmiInputValue );\r
}\r
\r
VOID\r
SwGetBuffer (\r
  IN  DATABASE_RECORD     * Record\r
  )\r
{\r
  EFI_STATUS                 Status;\r
  UINTN                      Index;\r
  UINTN                      CpuIndex;\r
  EFI_SMM_SAVE_STATE_IO_INFO IoState;\r
\r
  //\r
  // Locate SMM CPU protocol to retrieve the CPU save state\r
  //\r
  if (mSmmCpu == NULL) {\r
    Status = gSmst->SmmLocateProtocol (&gEfiSmmCpuProtocolGuid, NULL, (VOID **) &mSmmCpu);\r
    ASSERT_EFI_ERROR (Status);\r
  }\r
\r
  //\r
  // Find the CPU which generated the software SMI\r
  //\r
  CpuIndex = 0;\r
  for (Index = 0; Index < gSmst->NumberOfCpus; Index++) {\r
    Status = mSmmCpu->ReadSaveState (\r
                        mSmmCpu,\r
                        sizeof (EFI_SMM_SAVE_STATE_IO_INFO),\r
                        EFI_SMM_SAVE_STATE_REGISTER_IO,\r
                        Index,\r
                        &IoState\r
                        );\r
    if (!EFI_ERROR (Status) && (IoState.IoPort == R_APM_CNT)) {\r
      CpuIndex = Index;\r
      break;\r
    }\r
  }\r
\r
  Record->CommBuffer.Sw.SwSmiCpuIndex = CpuIndex;\r
}\r