Source/GmmLib/CachePolicy/GmmCachePolicy.cpp

/*==============================================================================
Copyright(c) 2017 Intel Corporation

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============================================================================*/

#include "Internal/Common/GmmLibInc.h"
#include "External/Common/GmmCachePolicy.h"

/////////////////////////////////////////////////////////////////////////////////////
/// C Wrapper function for GmmLib::GmmCachePolicyGetPteType
/// @see           GmmLib::GmmCachePolicyCommon::CachePolicyGetPteType()
///
/// @param[in]     Usage: type of usage
///
/// @return        GMM_PTE_CACHE_CONTROL_BITS:Populated PTE
///
/////////////////////////////////////////////////////////////////////////////////////
GMM_PTE_CACHE_CONTROL_BITS GMM_STDCALL GmmCachePolicyGetPteType(GMM_RESOURCE_USAGE_TYPE Usage)
{
    return pGmmGlobalContext->GetCachePolicyObj()->CachePolicyGetPteType(Usage);
}

/////////////////////////////////////////////////////////////////////////////////////
/// C Wrapper function for GmmLib::GmmCachePolicyIsUsagePTECached
/// @see           GmmLib::GmmCachePolicyCommon::CachePolicyIsUsagePTECached()
///
/// @param[in]     Usage: type of usage
///
/// @return        1 if the usage PTE entry is set for cached, 0 otherwise.
/////////////////////////////////////////////////////////////////////////////////////
uint8_t GMM_STDCALL GmmCachePolicyIsUsagePTECached(GMM_RESOURCE_USAGE_TYPE Usage)
{
    return pGmmGlobalContext->GetCachePolicyObj()->CachePolicyIsUsagePTECached(Usage);
}

/////////////////////////////////////////////////////////////////////////////////////
/// C wrapper for GmmLib::GmmResourceInfoCommon::GetCachePolicyUsage.
/// @see        GmmLib::GmmResourceInfoCommon::GetCachePolicyUsage()
///
/// @param[in]      pGmmResource: Pointer to the GmmResourceInfo class
/// @return         Cache policy usage
/////////////////////////////////////////////////////////////////////////////////////
GMM_RESOURCE_USAGE_TYPE GMM_STDCALL GmmCachePolicyGetResourceUsage(GMM_RESOURCE_INFO *pResInfo)
{
    __GMM_ASSERT(pResInfo);
    return pResInfo->GetCachePolicyUsage();
}

/////////////////////////////////////////////////////////////////////////////////////
/// C wrapper for GmmLib::GmmResourceInfoCommon::OverrideCachePolicyUsage.
/// @see        GmmLib::GmmResourceInfoCommon::OverrideCachePolicyUsage()
///
/// @param[in]      pGmmResource: Pointer to the GmmResourceInfo class
/// @param[in]      Cache policy usage
/////////////////////////////////////////////////////////////////////////////////////
void GMM_STDCALL GmmCachePolicyOverrideResourceUsage(GMM_RESOURCE_INFO *pResInfo, GMM_RESOURCE_USAGE_TYPE Usage)
{
    pResInfo->OverrideCachePolicyUsage(Usage);
}

/////////////////////////////////////////////////////////////////////////////////////
/// C Wrapper function for GmmLib::GmmCachePolicyGetMemoryObject
/// @see           GmmLib::GmmCachePolicyCommon::CachePolicyGetMemoryObject()
///
/// param[in]      pResInfo: Resource info for resource, can be NULL.
/// param[in]      Usage: Current usage for resource.
///
/// @return        MEMORY_OBJECT_CONTROL_STATE: Gen adjusted MOCS structure (cache
///                                             policy) for the given buffer use.
/////////////////////////////////////////////////////////////////////////////////////
MEMORY_OBJECT_CONTROL_STATE GMM_STDCALL GmmCachePolicyGetMemoryObject(GMM_RESOURCE_INFO *pResInfo, GMM_RESOURCE_USAGE_TYPE Usage)
{
    return pGmmGlobalContext->GetCachePolicyObj()->CachePolicyGetMemoryObject(pResInfo, Usage);
}

/////////////////////////////////////////////////////////////////////////////////////
/// C Wrapper function for GmmLib::GmmCachePolicyGetOriginalMemoryObject
///  @see           GmmLib::GmmCachePolicyCommon::CachePolicyGetOriginalMemoryObject()
///
///  @param[in]     pResInfo: Resource info for resource , can be null
///  @param[in]     Usage: Current usage for resource
///
///  @return        MEMORY_OBJECT_CONTROL_STATE: Populated memory object
///
/////////////////////////////////////////////////////////////////////////////////////
MEMORY_OBJECT_CONTROL_STATE GMM_STDCALL GmmCachePolicyGetOriginalMemoryObject(GMM_RESOURCE_INFO *pResInfo)
{
    return pGmmGlobalContext->GetCachePolicyObj()->CachePolicyGetOriginalMemoryObject(pResInfo);
}

/////////////////////////////////////////////////////////////////////////////////////
/// C Wrapper function for GmmCachePolicy::GmmGetWantedMemoryType.
/// @see            GmmLib::GmmCachePolicy::GetWantedMemoryType()
///
/// @param[in]      CachePolicy:cache policy for a usage
///
/// @return         wanted memory type
/////////////////////////////////////////////////////////////////////////////////////
GMM_GFX_MEMORY_TYPE GmmGetWantedMemoryType(GMM_CACHE_POLICY_ELEMENT CachePolicy)
{
    return pGmmGlobalContext->GetCachePolicyObj()->GetWantedMemoryType(CachePolicy);
}

/////////////////////////////////////////////////////////////////////////////////////
/// Returns count of current MOCS values for MOCS Table programming at GMM boot
///
/// @param[in]  none:
/// @return     uint32_t  no of mocs register required to program
/////////////////////////////////////////////////////////////////////////////////////
uint32_t GMM_STDCALL GmmCachePolicyGetMaxMocsIndex(void)
{
    GMM_CACHE_POLICY *          pCachePolicy = pGmmGlobalContext->GetCachePolicyObj();
    GmmLib::GmmGen9CachePolicy *ptr          = static_cast<GmmLib::GmmGen9CachePolicy *>(pCachePolicy);
    return ptr->CurrentMaxMocsIndex;
}

/////////////////////////////////////////////////////////////////////////////////////
/// Returns count of current L1 HDC MOCS values for MOCS Table programming at GMM boot
///
/// @param[in]  none:
/// @return     uint32_t  max L1 hdc mocs index needed to program
/////////////////////////////////////////////////////////////////////////////////////
uint32_t GMM_STDCALL GmmCachePolicyGetMaxL1HdcMocsIndex(void)
{
    GMM_CACHE_POLICY *          pCachePolicy = pGmmGlobalContext->GetCachePolicyObj();
    GmmLib::GmmGen9CachePolicy *ptr          = static_cast<GmmLib::GmmGen9CachePolicy *>(pCachePolicy);
    return ptr->CurrentMaxL1HdcMocsIndex;
}

/////////////////////////////////////////////////////////////////////////////////////
/// Returns count of current Special MOCS values for MOCS Table programming at GMM boot
///
/// @param[in]  none:
/// @return     uint32_t  max special mocs index needed to program
/////////////////////////////////////////////////////////////////////////////////////
uint32_t GMM_STDCALL GmmCachePolicyGetMaxSpecialMocsIndex(void)
{
    GMM_CACHE_POLICY *pCachePolicy = pGmmGlobalContext->GetCachePolicyObj();
    return pCachePolicy->GetMaxSpecialMocsIndex();
}