| /*============================================================================== |
| Copyright(c) 2020 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. |
| ============================================================================*/ |
| |
| |
| #include "Internal/Common/GmmLibInc.h" |
| #include "External/Common/GmmCachePolicy.h" |
| #include "External/Common/CachePolicy/GmmCachePolicyGen10.h" |
| #include "External/Common/CachePolicy/GmmCachePolicyGen11.h" |
| #include "External/Common/CachePolicy/GmmCachePolicyGen12.h" |
| #include "External/Common/CachePolicy/GmmCachePolicyGen12dGPU.h" |
| |
| //============================================================================= |
| // |
| // Function: IsSpecialMOCSUsage |
| // |
| // Desc: This function returns special(hw-reserved) MocsIdx based on usage |
| // |
| // Parameters: usage -> Resource usage type |
| // UpdateMOCS -> True if MOCS Table must be updated, ow false |
| // |
| // Return: int32_t |
| // |
| //----------------------------------------------------------------------------- |
| int32_t GmmLib::GmmGen12dGPUCachePolicy::IsSpecialMOCSUsage(GMM_RESOURCE_USAGE_TYPE Usage, bool &UpdateMOCS) |
| { |
| int32_t MocsIdx = -1; |
| UpdateMOCS = true; |
| |
| switch(Usage) |
| { |
| case GMM_RESOURCE_USAGE_CCS: |
| __GMM_ASSERT(pCachePolicy[Usage].L3 == 0) //Architecturally, CCS isn't L3-cacheable. |
| MocsIdx = 60; |
| break; |
| case GMM_RESOURCE_USAGE_MOCS_62: |
| __GMM_ASSERT(pCachePolicy[Usage].L3 == 0); //Architecturally, TR/Aux-TT node isn't L3-cacheable. |
| MocsIdx = 62; |
| break; |
| case GMM_RESOURCE_USAGE_L3_EVICTION: |
| MocsIdx = 63; |
| break; |
| case GMM_RESOURCE_USAGE_L3_EVICTION_SPECIAL: |
| case GMM_RESOURCE_USAGE_CCS_MEDIA_WRITABLE: |
| MocsIdx = 61; |
| break; |
| default: |
| UpdateMOCS = false; |
| break; |
| } |
| |
| return MocsIdx; |
| } |
| |
| //============================================================================= |
| // |
| // Function: __GmmGen12dGPUInitCachePolicy |
| // |
| // Desc: This function initializes the cache policy |
| // |
| // Parameters: pCachePolicy -> Ptr to array to be populated with the |
| // mapping of usages -> cache settings. |
| // |
| // Return: GMM_STATUS |
| // |
| //----------------------------------------------------------------------------- |
| GMM_STATUS GmmLib::GmmGen12dGPUCachePolicy::InitCachePolicy() |
| { |
| |
| __GMM_ASSERTPTR(pCachePolicy, GMM_ERROR); |
| |
| #define DEFINE_CACHE_ELEMENT(usage, l3, l3_scc, hdcl1) DEFINE_CP_ELEMENT(usage, 0, 0, l3, 0, 0, 0, 0, l3_scc, 0, 0, 0, hdcl1, 0, 0, 0, 0) |
| |
| #include "GmmGen12dGPUCachePolicy.h" |
| |
| #define L3_UNCACHEABLE (0x1) |
| #define L3_WB_CACHEABLE (0x3) |
| |
| #define DISABLE_SKIP_CACHING_CONTROL (0x0) |
| #define ENABLE_SKIP_CACHING_CONTROL (0x1) |
| |
| #define DISABLE_SELF_SNOOP_OVERRIDE (0x0) |
| #define CLASS_SERVICE_ZERO (0x0) |
| #define GMM_GEN12_MAX_NUMBER_MOCS_INDEXES (60) // On TGL last four (#60-#63) are reserved by h/w, few? are sw configurable though (#60) |
| { |
| SetUpMOCSTable(); |
| } |
| |
| { |
| // Define index of cache element |
| uint32_t Usage = 0; |
| |
| #if(_WIN32 && (_DEBUG || _RELEASE_INTERNAL)) |
| void *pKmdGmmContext = NULL; |
| #if(defined(__GMM_KMD__)) |
| pKmdGmmContext = pGmmGlobalContext->GetGmmKmdContext(); |
| #endif |
| |
| OverrideCachePolicy(pKmdGmmContext); |
| #endif |
| |
| // Process the cache policy and fill in the look up table |
| for(; Usage < GMM_RESOURCE_USAGE_MAX; Usage++) |
| { |
| bool CachePolicyError = false; |
| bool SpecialMOCS = false; |
| int32_t CPTblIdx = -1; |
| uint32_t j = 0; |
| uint32_t PTEValue = 0; |
| GMM_CACHE_POLICY_TBL_ELEMENT UsageEle = {0}; |
| uint32_t StartMocsIdx = 0; |
| |
| switch(GFX_GET_CURRENT_PRODUCT(pGmmGlobalContext->GetPlatformInfo().Platform)) |
| { |
| case IGFX_DG1: |
| StartMocsIdx = 1; // Index 0 is reserved for Error |
| break; |
| default: |
| StartMocsIdx = 1; |
| break; |
| } |
| |
| // No Special MOCS handling for next platform |
| if(GFX_GET_CURRENT_PRODUCT(pGmmGlobalContext->GetPlatformInfo().Platform) <= IGFX_DG1) |
| { |
| CPTblIdx = IsSpecialMOCSUsage((GMM_RESOURCE_USAGE_TYPE)Usage, SpecialMOCS); |
| } |
| |
| // Applicable upto only |
| if(pCachePolicy[Usage].HDCL1 && |
| (GFX_GET_CURRENT_PRODUCT(pGmmGlobalContext->GetPlatformInfo().Platform) <= IGFX_DG1)) |
| { |
| UsageEle.HDCL1 = 1; |
| } |
| |
| UsageEle.L3.Reserved = 0; // Reserved bits zeroe'd, this is so we |
| // we can compare the unioned L3.UshortValue. |
| UsageEle.L3.ESC = DISABLE_SKIP_CACHING_CONTROL; |
| UsageEle.L3.SCC = 0; |
| UsageEle.L3.Cacheability = pCachePolicy[Usage].L3 ? L3_WB_CACHEABLE : L3_UNCACHEABLE; |
| |
| if(pCachePolicy[Usage].L3_SCC) |
| { |
| UsageEle.L3.ESC = ENABLE_SKIP_CACHING_CONTROL; |
| UsageEle.L3.SCC = (uint16_t)pCachePolicy[Usage].L3_SCC; |
| } |
| |
| //Special-case MOCS handling for MOCS Table Index 60-63 |
| if(CPTblIdx >= GMM_GEN12_MAX_NUMBER_MOCS_INDEXES) |
| { |
| GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &pGmmGlobalContext->GetCachePolicyTlbElement()[CPTblIdx]; |
| |
| if(SpecialMOCS && |
| !(TblEle->L3.UshortValue == UsageEle.L3.UshortValue)) |
| { |
| //Assert if being overwritten! |
| __GMM_ASSERT(TblEle->L3.UshortValue == 0); |
| |
| } |
| } |
| //For HDC L1 caching, MOCS Table index 48-59 should be used |
| else if(UsageEle.HDCL1) |
| { |
| for(j = GMM_GEN10_HDCL1_MOCS_INDEX_START; j <= CurrentMaxL1HdcMocsIndex; j++) |
| { |
| GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &pGmmGlobalContext->GetCachePolicyTlbElement()[j]; |
| if(TblEle->L3.UshortValue == UsageEle.L3.UshortValue && |
| TblEle->HDCL1 == UsageEle.HDCL1) |
| { |
| CPTblIdx = j; |
| break; |
| } |
| } |
| } |
| else |
| { |
| for(j = StartMocsIdx; j <= CurrentMaxMocsIndex; j++) |
| { |
| if(pCachePolicy[Usage].L3 == 0) |
| { |
| CPTblIdx = StartMocsIdx; |
| break; |
| } |
| else |
| { |
| GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &pGmmGlobalContext->GetCachePolicyTlbElement()[j]; |
| if(TblEle->L3.UshortValue == UsageEle.L3.UshortValue) |
| { |
| CPTblIdx = j; |
| break; |
| } |
| } |
| } |
| } |
| |
| // Didn't find the caching settings in one of the already programmed lookup table entries. |
| // Need to add a new lookup table entry. |
| if(CPTblIdx == -1) |
| { |
| |
| { |
| GMM_ASSERTDPF(false, "CRITICAL ERROR: Cache Policy Usage value specified by Client is not defined in Fixed MOCS Table!"); |
| |
| CachePolicyError = true; |
| GMM_ASSERTDPF( |
| "Cache Policy Init Error: Invalid Cache Programming, too many unique caching combinations" |
| "(we only support GMM_GEN_MAX_NUMBER_MOCS_INDEXES = %d)", |
| CurrentMaxMocsIndex); |
| |
| // Set cache policy index to uncached. |
| CPTblIdx = StartMocsIdx; |
| } |
| } |
| |
| // PTE entries do not control caching on SKL+ (for legacy context) |
| if(!GetUsagePTEValue(pCachePolicy[Usage], Usage, &PTEValue)) |
| { |
| CachePolicyError = true; |
| } |
| |
| pCachePolicy[Usage].PTE.DwordValue = PTEValue; |
| |
| pCachePolicy[Usage].MemoryObjectOverride.Gen12.Index = CPTblIdx; |
| |
| pCachePolicy[Usage].Override = ALWAYS_OVERRIDE; |
| |
| if(CachePolicyError) |
| { |
| GMM_ASSERTDPF("Cache Policy Init Error: Invalid Cache Programming - Element %d", Usage); |
| } |
| } |
| } |
| |
| return GMM_SUCCESS; |
| } |
| |
| #pragma optimize("", on) |
| //============================================================================= |
| // |
| // Function: SetUpMOCSTable |
| // |
| // Desc: For Gen12dGPU, Define new Fixed MOCS table |
| // |
| // Parameters: |
| // |
| // Return: GMM_STATUS |
| // |
| //----------------------------------------------------------------------------- |
| void GmmLib::GmmGen12dGPUCachePolicy::SetUpMOCSTable() |
| { |
| GMM_CACHE_POLICY_TBL_ELEMENT *pCachePolicyTlbElement = &(pGmmGlobalContext->GetCachePolicyTlbElement()[0]); |
| CurrentMaxL1HdcMocsIndex = 0; |
| CurrentMaxSpecialMocsIndex = 0; |
| |
| #define GMM_DEFINE_MOCS(Index, L3_ESC, L3_SCC, L3_CC, _HDCL1) \ |
| { \ |
| pCachePolicyTlbElement[Index].L3.ESC = L3_ESC; \ |
| pCachePolicyTlbElement[Index].L3.SCC = L3_SCC; \ |
| pCachePolicyTlbElement[Index].L3.Cacheability = L3_CC; \ |
| pCachePolicyTlbElement[Index].LeCC.Cacheability = 1; \ |
| pCachePolicyTlbElement[Index].LeCC.TargetCache = 0; \ |
| pCachePolicyTlbElement[Index].LeCC.LRUM = 0; \ |
| pCachePolicyTlbElement[Index].LeCC.AOM = 0; \ |
| pCachePolicyTlbElement[Index].LeCC.ESC = 0; \ |
| pCachePolicyTlbElement[Index].LeCC.SCC = 0; \ |
| pCachePolicyTlbElement[Index].LeCC.PFM = 0; \ |
| pCachePolicyTlbElement[Index].LeCC.SCF = 0; \ |
| pCachePolicyTlbElement[Index].LeCC.CoS = CLASS_SERVICE_ZERO; \ |
| pCachePolicyTlbElement[Index].LeCC.SelfSnoop = DISABLE_SELF_SNOOP_OVERRIDE; \ |
| pCachePolicyTlbElement[Index].HDCL1 = _HDCL1; \ |
| } |
| |
| // clang-format off |
| |
| if (GFX_GET_CURRENT_PRODUCT(pGmmGlobalContext->GetPlatformInfo().Platform) == IGFX_DG1) |
| { |
| //Default MOCS Table |
| for(int index = 0; index < GMM_MAX_NUMBER_MOCS_INDEXES; index++) |
| { // Index ESC SCC L3CC HDCL1 |
| GMM_DEFINE_MOCS( index , 0 , 0 , 3 , 0 ) |
| } |
| // Fixed MOCS Table |
| // Index ESC SCC L3CC HDCL1 |
| GMM_DEFINE_MOCS( 1 , 0 , 0 , 1 , 0 ) |
| GMM_DEFINE_MOCS( 2 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 3 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 4 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 5 , 0 , 0 , 3 , 0 ) |
| GMM_DEFINE_MOCS( 6 , 1 , 1 , 3 , 0 ) |
| GMM_DEFINE_MOCS( 7 , 1 , 3 , 3 , 0 ) |
| GMM_DEFINE_MOCS( 8 , 1 , 7 , 3 , 0 ) |
| GMM_DEFINE_MOCS( 48 , 0 , 0 , 3 , 1 ) |
| GMM_DEFINE_MOCS( 49 , 0 , 0 , 1 , 1 ) |
| GMM_DEFINE_MOCS( 60 , 0 , 0 , 1 , 0 ) |
| GMM_DEFINE_MOCS( 61 , 0 , 0 , 1 , 0 ) |
| GMM_DEFINE_MOCS( 62 , 0 , 0 , 1 , 0 ) |
| GMM_DEFINE_MOCS( 63 , 0 , 0 , 1 , 0 ) |
| |
| CurrentMaxMocsIndex = 8; |
| CurrentMaxL1HdcMocsIndex = 49; |
| CurrentMaxSpecialMocsIndex = 63; |
| |
| } |
| |
| // clang-format on |
| |
| |
| #undef GMM_DEFINE_MOCS |
| } |
