| /*============================================================================== |
| Copyright(c) 2017 Intel Corporation |
| |
| Permission is hereby granted, free of charge, to any person obtaining a |
| copy of this software and associated documentation files(the "Software"), |
| to deal in the Software without restriction, including without limitation |
| the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| and / or sell copies of the Software, and to permit persons to whom the |
| Software is furnished to do so, subject to the following conditions: |
| |
| The above copyright notice and this permission notice shall be included |
| in all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| OTHER DEALINGS IN THE SOFTWARE. |
| ============================================================================*/ |
| #pragma once |
| |
| #ifdef __cplusplus |
| #include "../GmmCachePolicyCommon.h" |
| |
| namespace GmmLib |
| { |
| class NON_PAGED_SECTION GmmGen8CachePolicy : |
| public GmmCachePolicyCommon |
| { |
| protected: |
| /* Function prototypes */ |
| GMM_PRIVATE_PAT GetPrivatePATEntry(uint32_t PATIdx); |
| bool SetPrivatePATEntry(uint32_t PATIdx, GMM_PRIVATE_PAT Entry); |
| bool SelectNewPATIdx(GMM_GFX_MEMORY_TYPE WantedMT, GMM_GFX_TARGET_CACHE WantedTC, |
| GMM_GFX_MEMORY_TYPE MT1, GMM_GFX_TARGET_CACHE TC1, |
| GMM_GFX_MEMORY_TYPE MT2, GMM_GFX_TARGET_CACHE TC2); |
| bool GetUsagePTEValue(GMM_CACHE_POLICY_ELEMENT CachePolicy, |
| uint32_t Usage, |
| uint32_t *pPTEDwordValue); |
| |
| /* Virtual function prototypes */ |
| virtual uint32_t BestMatchingPATIdx(GMM_CACHE_POLICY_ELEMENT CachePolicy); |
| |
| public: |
| /* Constructors */ |
| GmmGen8CachePolicy(GMM_CACHE_POLICY_ELEMENT *pCachePolicy) :GmmCachePolicyCommon(pCachePolicy) |
| { |
| #if(defined(__GMM_KMD__)) |
| //if (GFX_IS_SKU(pGmmGlobalContext, FtrIA32eGfxPTEs)) |
| { |
| // Set the WA's needed for Private PAT initialization |
| SetPATInitWA(); |
| SetupPAT(); |
| } |
| #endif |
| } |
| |
| virtual ~GmmGen8CachePolicy() |
| { |
| } |
| |
| /* Function prototypes */ |
| GMM_STATUS InitCachePolicy(); |
| GMM_STATUS SetPATInitWA(); |
| GMM_STATUS SetupPAT(); |
| uint8_t GMM_STDCALL CachePolicyIsUsagePTECached(GMM_RESOURCE_USAGE_TYPE Usage); |
| }; |
| } |
| #endif // #ifdef __cplusplus |
