| /*============================================================================== |
| Copyright(c) 2019 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" |
| |
| #if __GMM_KMD__ |
| extern "C" NTSTATUS __GmmReadDwordKeyValue(void *pKmdGmmContext, char *pPath, WCHAR *pValueName, ULONG *pValueData); |
| extern "C" NTSTATUS __GmmWriteDwordKeyValue(void *pKmdGmmContext, char *pCStringPath, WCHAR *pValueName, ULONG DWord); |
| #endif |
| |
| //============================================================================= |
| // |
| // 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::GmmGen12CachePolicy::IsSpecialMOCSUsage(GMM_RESOURCE_USAGE_TYPE Usage, bool &UpdateMOCS) |
| { |
| int32_t MocsIdx = -1; |
| UpdateMOCS = true; |
| //Macros for L3-Eviction Type |
| #define NA 0x0 |
| #define RO 0x1 |
| #define RW 0x2 |
| #define SP 0x3 |
| |
| switch(Usage) |
| { |
| case GMM_RESOURCE_USAGE_CCS: |
| __GMM_ASSERT(pCachePolicy[Usage].L3 == 0); //Architecturally, CCS isn't L3-cacheable. |
| |
| pCachePolicy[Usage].L3 = 0; |
| MocsIdx = 60; |
| break; |
| case GMM_RESOURCE_USAGE_MOCS_62: |
| __GMM_ASSERT(pCachePolicy[Usage].L3 == 0); //Architecturally, TR/Aux-TT node isn't L3-cacheable. |
| |
| pCachePolicy[Usage].L3 = 0; |
| MocsIdx = 62; |
| break; |
| case GMM_RESOURCE_USAGE_L3_EVICTION: |
| __GMM_ASSERT(pCachePolicy[Usage].L3 == 0 && |
| pCachePolicy[Usage].L3Eviction == RW); //Reserved MOCS for L3-evictions |
| |
| pCachePolicy[Usage].L3 = 0; |
| pCachePolicy[Usage].L3Eviction = RW; |
| MocsIdx = 63; |
| break; |
| case GMM_RESOURCE_USAGE_L3_EVICTION_SPECIAL: |
| case GMM_RESOURCE_USAGE_CCS_MEDIA_WRITABLE: |
| __GMM_ASSERT(pCachePolicy[Usage].L3 && |
| pCachePolicy[Usage].L3Eviction == SP); //Reserved MOCS for L3-evictions |
| //Special-case for Displayable, and similar non-LLC accesses |
| GMM_ASSERTDPF(pCachePolicy[Usage].LLC == 0, "MOCS#61's Special Eviction isn't for LLC caching"); |
| |
| pCachePolicy[Usage].L3 = 1; |
| pCachePolicy[Usage].L3Eviction = SP; |
| MocsIdx = 61; |
| break; |
| default: |
| UpdateMOCS = false; |
| break; |
| } |
| |
| if(pCachePolicy[Usage].L3Eviction == RW) |
| { |
| GMM_CACHE_POLICY_ELEMENT L3Eviction; |
| L3Eviction.Value = pCachePolicy[GMM_RESOURCE_USAGE_L3_EVICTION].Value; |
| |
| //For internal purpose, hw overrides MOCS#63 as L3-uncacheable, still using it for L3-evictions |
| if(Usage != GMM_RESOURCE_USAGE_L3_EVICTION) |
| { |
| L3Eviction.L3 = 1; //Override L3, to verify MOCS#63 applicable or not |
| } |
| |
| __GMM_ASSERT(pCachePolicy[Usage].Value == L3Eviction.Value); //Allow mis-match due to override registries |
| //MocsIdx = 63; //Use non-#63 MOCS, #63 itself is L3-uncached |
| } |
| else if(pCachePolicy[Usage].L3Eviction == SP) |
| { |
| __GMM_ASSERT(pCachePolicy[Usage].Value == pCachePolicy[GMM_RESOURCE_USAGE_L3_EVICTION_SPECIAL].Value); //Allow mis-match due to override registries |
| MocsIdx = 61; |
| } |
| |
| return MocsIdx; |
| } |
| //============================================================================= |
| // |
| // Function: __GmmGen12InitCachePolicy |
| // |
| // 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::GmmGen12CachePolicy::InitCachePolicy() |
| { |
| |
| __GMM_ASSERTPTR(pCachePolicy, GMM_ERROR); |
| |
| #define DEFINE_CACHE_ELEMENT(usage, llc, ellc, l3, wt, age, aom, lecc_scc, l3_scc, scf, sso, cos, hdcl1, l3evict) DEFINE_CP_ELEMENT(usage, llc, ellc, l3, wt, age, aom, lecc_scc, l3_scc, scf, sso, cos, hdcl1, l3evict, 0, 0, 0) |
| |
| #include "GmmGen12CachePolicy.h" |
| |
| #define TC_LLC (1) |
| #define TC_ELLC (0) |
| #define TC_LLC_ELLC (2) |
| |
| #define LeCC_UNCACHEABLE (0x0) |
| #define LeCC_WC_UNCACHEABLE (0x1) |
| #define LeCC_WT_CACHEABLE (0x2) //Only used as MemPushWRite disqualifier if set along with eLLC-only -still holds on gen12+? |
| #define LeCC_WB_CACHEABLE (0x3) |
| |
| #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 ENABLE_SELF_SNOOP_OVERRIDE (0x1) |
| #define ENABLE_SELF_SNOOP_ALWAYS (0x3) |
| #define CLASS_SERVICE_ZERO (0x0) |
| |
| { |
| 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}; |
| |
| CPTblIdx = IsSpecialMOCSUsage((GMM_RESOURCE_USAGE_TYPE)Usage, SpecialMOCS); |
| |
| UsageEle.LeCC.Reserved = 0; // Reserved bits zeroe'd, this is so we |
| // we can compare the unioned LeCC.DwordValue. |
| UsageEle.LeCC.SelfSnoop = DISABLE_SELF_SNOOP_OVERRIDE; |
| UsageEle.LeCC.CoS = CLASS_SERVICE_ZERO; |
| UsageEle.LeCC.SCC = 0; |
| UsageEle.LeCC.ESC = 0; |
| |
| if(pCachePolicy[Usage].SCF && pGmmGlobalContext->GetSkuTable().FtrLLCBypass) |
| { |
| UsageEle.LeCC.SCF = pCachePolicy[Usage].SCF; |
| __GMM_ASSERT(pCachePolicy[Usage].LLC == 0); //LLC and ByPassLLC are mutually-exclusive |
| } |
| |
| if(pCachePolicy[Usage].SSO & ENABLE_SELF_SNOOP_OVERRIDE) |
| { |
| UsageEle.LeCC.SelfSnoop = pCachePolicy[Usage].SSO & ENABLE_SELF_SNOOP_ALWAYS; |
| } |
| if(pCachePolicy[Usage].CoS) |
| { |
| UsageEle.LeCC.CoS = pCachePolicy[Usage].CoS; |
| } |
| if(pCachePolicy[Usage].HDCL1) |
| { |
| UsageEle.HDCL1 = 1; |
| } |
| if(pCachePolicy[Usage].LeCC_SCC) |
| { |
| UsageEle.LeCC.SCC = pCachePolicy[Usage].LeCC_SCC; |
| UsageEle.LeCC.ESC = ENABLE_SKIP_CACHING_CONTROL; |
| } |
| UsageEle.LeCC.LRUM = pCachePolicy[Usage].AGE; |
| |
| // default to LLC target cache. |
| UsageEle.LeCC.TargetCache = TC_LLC; |
| UsageEle.LeCC.Cacheability = LeCC_WB_CACHEABLE; |
| if(pCachePolicy[Usage].LLC) |
| { |
| UsageEle.LeCC.TargetCache = TC_LLC; |
| __GMM_ASSERT(pCachePolicy[Usage].SCF == 0); //LLC and ByPassLLC are mutually-exclusive |
| } |
| else |
| { |
| UsageEle.LeCC.Cacheability = LeCC_WC_UNCACHEABLE; |
| } |
| 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; |
| |
| __GMM_ASSERT((pCachePolicy[Usage].L3 && pCachePolicy[Usage].L3Eviction != 0) || |
| (pCachePolicy[Usage].L3 == 0 && (pCachePolicy[Usage].L3Eviction == 0 || Usage == GMM_RESOURCE_USAGE_L3_EVICTION))); |
| |
| 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->LeCC.DwordValue == UsageEle.LeCC.DwordValue && |
| TblEle->L3.UshortValue == UsageEle.L3.UshortValue && |
| TblEle->HDCL1 == UsageEle.HDCL1)) |
| { |
| //Assert if being overwritten! |
| __GMM_ASSERT(TblEle->LeCC.DwordValue == 0 && |
| TblEle->L3.UshortValue == 0 && |
| TblEle->HDCL1 == 0); |
| |
| #if(_WIN32 && (_DEBUG || _RELEASE_INTERNAL)) |
| if(pCachePolicy[Usage].IsOverridenByRegkey) |
| { |
| TblEle->LeCC.DwordValue = UsageEle.LeCC.DwordValue; |
| TblEle->L3.UshortValue = UsageEle.L3.UshortValue; |
| TblEle->HDCL1 = UsageEle.HDCL1; |
| } |
| #endif |
| } |
| } |
| //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->LeCC.DwordValue == UsageEle.LeCC.DwordValue && |
| TblEle->L3.UshortValue == UsageEle.L3.UshortValue && |
| TblEle->HDCL1 == UsageEle.HDCL1) |
| { |
| CPTblIdx = j; |
| break; |
| } |
| } |
| } |
| else |
| { |
| // Due to unstable system behavior on TGLLP, MOCS #0 index had to be programmed as UC in MOCS lookup table - pCachePolicyTlbElement |
| // But still Index 0 is Reserved for Error by HW and should not be used. |
| // Hence Gmmlib will opt out from the MOCS#0 usage and Lookup into MOCS table and MOCS index assigment must start from Index 1. |
| for(j = 1; j <= CurrentMaxMocsIndex; j++) |
| { |
| GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &pGmmGlobalContext->GetCachePolicyTlbElement()[j]; |
| if(TblEle->LeCC.DwordValue == UsageEle.LeCC.DwordValue && |
| TblEle->L3.UshortValue == UsageEle.L3.UshortValue && |
| TblEle->HDCL1 == UsageEle.HDCL1) |
| { |
| 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) |
| { |
| |
| #if(_WIN32 && (_DEBUG || _RELEASE_INTERNAL)) |
| // If the Cache Policy setting is overriden through regkey, |
| // don't raise an assert/log error. Raising an assert for debug/perf testing isn't really helpful |
| if(pCachePolicy[Usage].IsOverridenByRegkey) |
| { |
| if(UsageEle.HDCL1 && CurrentMaxL1HdcMocsIndex < GMM_GEN12_MAX_NUMBER_MOCS_INDEXES - 1) |
| { |
| GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &(pGmmGlobalContext->GetCachePolicyTlbElement()[++CurrentMaxL1HdcMocsIndex]); |
| CPTblIdx = CurrentMaxL1HdcMocsIndex; |
| |
| TblEle->LeCC.DwordValue = UsageEle.LeCC.DwordValue; |
| TblEle->L3.UshortValue = UsageEle.L3.UshortValue; |
| TblEle->HDCL1 = UsageEle.HDCL1; |
| } |
| else if(CurrentMaxMocsIndex < GMM_GEN10_HDCL1_MOCS_INDEX_START) |
| { |
| GMM_CACHE_POLICY_TBL_ELEMENT *TblEle = &(pGmmGlobalContext->GetCachePolicyTlbElement()[++CurrentMaxMocsIndex]); |
| CPTblIdx = CurrentMaxMocsIndex; |
| |
| TblEle->LeCC.DwordValue = UsageEle.LeCC.DwordValue; |
| TblEle->L3.UshortValue = UsageEle.L3.UshortValue; |
| TblEle->HDCL1 = UsageEle.HDCL1; |
| } |
| else |
| { |
| // Too many unique caching combinations to program the |
| // MOCS lookup 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)", |
| GMM_MAX_NUMBER_MOCS_INDEXES - 1); |
| // Set cache policy index to uncached. |
| CPTblIdx = 3; |
| } |
| } |
| else |
| #endif |
| { |
| GMM_ASSERTDPF(false, "CRITICAL ERROR: Cache Policy Usage value specified by Client is not defined in Fixed MOCS Table!"); |
| |
| // Log Error using regkey to indicate the above error |
| #if(_WIN32 && (_DEBUG || _RELEASE_INTERNAL) && __GMM_KMD__) |
| REGISTRY_OVERRIDE_WRITE(pKmdGmmContext, Usage, NewMOCSEntryLeCCValue, UsageEle.LeCC.DwordValue); |
| REGISTRY_OVERRIDE_WRITE(pKmdGmmContext, Usage, NewMOCSEntryL3Value, UsageEle.L3.UshortValue); |
| REGISTRY_OVERRIDE_WRITE(pKmdGmmContext, Usage, NewMOCSEntryHDCL1, UsageEle.HDCL1); |
| #endif |
| |
| 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 = 3; |
| } |
| } |
| |
| // 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; |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////// |
| /// Return true if (MT2) is a better match for (WantedMT) |
| /// than (MT1) |
| /// |
| /// @param[in] WantedMT: Wanted Memory Type |
| /// @param[in] MT1: Memory Type for PATIdx1 |
| /// @param[in] MT2: Memory Type for PATIdx2 |
| /// |
| /// @return Select the new PAT Index True/False |
| ///////////////////////////////////////////////////////////////////////////////////// |
| uint8_t GmmLib::GmmGen12CachePolicy::SelectNewPATIdx(GMM_GFX_MEMORY_TYPE WantedMT, |
| GMM_GFX_MEMORY_TYPE MT1, GMM_GFX_MEMORY_TYPE MT2) |
| { |
| uint8_t SelectPAT2 = 0; |
| |
| // select on Memory Type |
| if(MT1 != WantedMT) |
| { |
| if(MT2 == WantedMT || MT2 == GMM_GFX_UC_WITH_FENCE) |
| { |
| SelectPAT2 = 1; |
| } |
| goto EXIT; |
| } |
| |
| EXIT: |
| return SelectPAT2; |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////// |
| /// Returns the PAT idx that best matches the cache policy for this usage. |
| /// |
| /// @param: CachePolicy: cache policy for a usage |
| /// |
| /// @return PAT Idx to use in the PTE |
| ///////////////////////////////////////////////////////////////////////////////////// |
| uint32_t GmmLib::GmmGen12CachePolicy::BestMatchingPATIdx(GMM_CACHE_POLICY_ELEMENT CachePolicy) |
| { |
| uint32_t i; |
| uint32_t PATIdx = 0; |
| GMM_GFX_MEMORY_TYPE WantedMemoryType = GMM_GFX_UC_WITH_FENCE, MemoryType; |
| WA_TABLE * pWaTable = &const_cast<WA_TABLE &>(pGmmGlobalContext->GetWaTable()); |
| |
| WantedMemoryType = GetWantedMemoryType(CachePolicy); |
| |
| // Override wantedMemoryType so that PAT.MT is UC |
| // Gen12 uses max function to resolve PAT-vs-MOCS MemType, So unless PTE.PAT says UC, MOCS won't be able to set UC! |
| if(pWaTable->WaMemTypeIsMaxOfPatAndMocs) |
| { |
| WantedMemoryType = GMM_GFX_UC_WITH_FENCE; |
| } |
| |
| for(i = 1; i < GMM_NUM_PAT_ENTRIES; i++) |
| { |
| GMM_PRIVATE_PAT PAT1 = GetPrivatePATEntry(PATIdx); |
| GMM_PRIVATE_PAT PAT2 = GetPrivatePATEntry(i); |
| |
| if(SelectNewPATIdx(WantedMemoryType, |
| (GMM_GFX_MEMORY_TYPE)PAT1.Gen12.MemoryType, |
| (GMM_GFX_MEMORY_TYPE)PAT2.Gen12.MemoryType)) |
| { |
| PATIdx = i; |
| } |
| } |
| |
| MemoryType = (GMM_GFX_MEMORY_TYPE)GetPrivatePATEntry(PATIdx).Gen12.MemoryType; |
| |
| if(MemoryType != WantedMemoryType) |
| { |
| // Failed to find a matching PAT entry |
| return GMM_PAT_ERROR; |
| } |
| return PATIdx; |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////// |
| /// Initializes WA's needed for setting up the Private PATs |
| /// WaNoMocsEllcOnly (reset) |
| /// WaGttPat0, WaGttPat0GttWbOverOsIommuEllcOnly, WaGttPat0WB (use from base class) |
| /// |
| /// @return GMM_STATUS |
| /// |
| ///////////////////////////////////////////////////////////////////////////////////// |
| GMM_STATUS GmmLib::GmmGen12CachePolicy::SetPATInitWA() |
| { |
| GMM_STATUS Status = GMM_SUCCESS; |
| WA_TABLE * pWaTable = &const_cast<WA_TABLE &>(pGmmGlobalContext->GetWaTable()); |
| |
| #if(defined(__GMM_KMD__)) |
| __GMM_ASSERT(pGmmGlobalContext->GetSkuTable().FtrMemTypeMocsDeferPAT == 0x0); //MOCS.TargetCache supports eLLC only, PAT.TC -> reserved bits. |
| pWaTable->WaGttPat0WB = 0; //Override PAT #0 |
| #else |
| Status = GMM_ERROR; |
| #endif |
| |
| return Status; |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////// |
| /// Initializes the Gfx PAT tables for AdvCtx and Gfx MMIO/Private PAT |
| /// PAT0 = WB_COHERENT or UC depending on WaGttPat0WB |
| /// PAT1 = UC or WB_COHERENT depending on WaGttPat0WB |
| /// PAT2 = WB_MOCSLESS |
| /// PAT3 = WB |
| /// PAT4 = WT |
| /// PAT5 = WC |
| /// PAT6 = WC |
| /// PAT7 = WC |
| /// HLD says to set to PAT0/1 to WC, but since we don't have a WC in GPU, |
| /// WC option is same as UC. Hence setting PAT0 or PAT1 to UC. |
| /// Unused PAT's (5,6,7) are set to WC. |
| /// |
| /// @return GMM_STATUS |
| ///////////////////////////////////////////////////////////////////////////////////// |
| GMM_STATUS GmmLib::GmmGen12CachePolicy::SetupPAT() |
| { |
| GMM_STATUS Status = GMM_SUCCESS; |
| #if(defined(__GMM_KMD__)) |
| uint32_t i = 0; |
| |
| GMM_GFX_MEMORY_TYPE GfxMemType = GMM_GFX_UC_WITH_FENCE; |
| int32_t * pPrivatePATTableMemoryType = NULL; |
| pPrivatePATTableMemoryType = pGmmGlobalContext->GetPrivatePATTableMemoryType(); |
| |
| __GMM_ASSERT(pGmmGlobalContext->GetSkuTable().FtrIA32eGfxPTEs); |
| |
| for(i = 0; i < GMM_NUM_GFX_PAT_TYPES; i++) |
| { |
| pPrivatePATTableMemoryType[i] = -1; |
| } |
| |
| // Set values for GmmGlobalInfo PrivatePATTable |
| for(i = 0; i < GMM_NUM_PAT_ENTRIES; i++) |
| { |
| GMM_PRIVATE_PAT PAT = {0}; |
| |
| switch(i) |
| { |
| case PAT0: |
| if(pGmmGlobalContext->GetWaTable().WaGttPat0) |
| { |
| if(pGmmGlobalContext->GetWaTable().WaGttPat0WB) |
| { |
| GfxMemType = GMM_GFX_WB; |
| pPrivatePATTableMemoryType[GMM_GFX_PAT_WB_COHERENT] = PAT0; |
| } |
| else |
| { |
| GfxMemType = GMM_GFX_UC_WITH_FENCE; |
| pPrivatePATTableMemoryType[GMM_GFX_PAT_UC] = PAT0; |
| } |
| } |
| else // if GTT is not tied to PAT0 then WaGttPat0WB is NA |
| { |
| GfxMemType = GMM_GFX_WB; |
| pPrivatePATTableMemoryType[GMM_GFX_PAT_WB_COHERENT] = PAT0; |
| } |
| break; |
| |
| case PAT1: |
| if(pGmmGlobalContext->GetWaTable().WaGttPat0 && !pGmmGlobalContext->GetWaTable().WaGttPat0WB) |
| { |
| GfxMemType = GMM_GFX_WB; |
| pPrivatePATTableMemoryType[GMM_GFX_PAT_WB_COHERENT] = PAT1; |
| } |
| else |
| { |
| GfxMemType = GMM_GFX_UC_WITH_FENCE; |
| pPrivatePATTableMemoryType[GMM_GFX_PAT_UC] = PAT1; |
| } |
| break; |
| |
| case PAT2: |
| // This PAT idx shall be used for MOCS'Less resources like Page Tables |
| // Page Tables have TC hardcoded to eLLC+LLC in Adv Ctxt. Hence making this to have same in Leg Ctxt. |
| // For BDW-H, due to Perf issue, TC has to be eLLC only for Page Tables when eDRAM is present. |
| GfxMemType = GMM_GFX_WB; |
| pPrivatePATTableMemoryType[GMM_GFX_PAT_WB_MOCSLESS] = PAT2; |
| break; |
| |
| case PAT3: |
| GfxMemType = GMM_GFX_WB; |
| pPrivatePATTableMemoryType[GMM_GFX_PAT_WB] = PAT3; |
| break; |
| |
| case PAT4: |
| GfxMemType = GMM_GFX_WT; |
| pPrivatePATTableMemoryType[GMM_GFX_PAT_WT] = PAT4; |
| break; |
| |
| case PAT5: |
| case PAT6: |
| case PAT7: |
| GfxMemType = GMM_GFX_WC; |
| pPrivatePATTableMemoryType[GMM_GFX_PAT_WC] = PAT5; |
| break; |
| |
| default: |
| __GMM_ASSERT(0); |
| Status = GMM_ERROR; |
| } |
| |
| PAT.Gen12.MemoryType = GfxMemType; |
| |
| SetPrivatePATEntry(i, PAT); |
| } |
| |
| #else |
| Status = GMM_ERROR; |
| #endif |
| return Status; |
| } |
| |
| //============================================================================= |
| // |
| // Function: SetUpMOCSTable |
| // |
| // Desc: |
| // |
| // Parameters: |
| // |
| // Return: GMM_STATUS |
| // |
| //----------------------------------------------------------------------------- |
| void GmmLib::GmmGen12CachePolicy::SetUpMOCSTable() |
| { |
| GMM_CACHE_POLICY_TBL_ELEMENT *pCachePolicyTlbElement = &(pGmmGlobalContext->GetCachePolicyTlbElement()[0]); |
| |
| #define GMM_DEFINE_MOCS(Index, L3_ESC, L3_SCC, L3_CC, LeCC_CC, LeCC_TC, LeCC_LRUM, LeCC_AOM, LeCC_ESC, LeCC_SCC, LeCC_PFM, LeCC_SCF, LeCC_CoS, LeCC_SelfSnoop, _HDCL1) \ |
| { \ |
| pCachePolicyTlbElement[Index].L3.ESC = L3_ESC; \ |
| pCachePolicyTlbElement[Index].L3.SCC = L3_SCC; \ |
| pCachePolicyTlbElement[Index].L3.Cacheability = L3_CC; \ |
| pCachePolicyTlbElement[Index].LeCC.Cacheability = LeCC_CC; \ |
| pCachePolicyTlbElement[Index].LeCC.TargetCache = LeCC_TC; \ |
| pCachePolicyTlbElement[Index].LeCC.LRUM = LeCC_LRUM; \ |
| pCachePolicyTlbElement[Index].LeCC.AOM = LeCC_AOM; \ |
| pCachePolicyTlbElement[Index].LeCC.ESC = LeCC_ESC; \ |
| pCachePolicyTlbElement[Index].LeCC.SCC = LeCC_SCC; \ |
| pCachePolicyTlbElement[Index].LeCC.PFM = LeCC_PFM; \ |
| pCachePolicyTlbElement[Index].LeCC.SCF = LeCC_SCF; \ |
| pCachePolicyTlbElement[Index].LeCC.CoS = LeCC_CoS; \ |
| pCachePolicyTlbElement[Index].LeCC.SelfSnoop = LeCC_SelfSnoop; \ |
| pCachePolicyTlbElement[Index].HDCL1 = _HDCL1; \ |
| } |
| |
| // clang-format off |
| |
| //Default MOCS Table |
| for(int index = 0; index < GMM_MAX_NUMBER_MOCS_INDEXES; index++) |
| { // Index ES SCC L3CC LeCC TC LRUM DAoM ERSC SCC PFM SCF CoS SSE HDCL1 |
| GMM_DEFINE_MOCS( index , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| } |
| |
| // Fixed MOCS Table |
| // Index ESC SCC L3CC LeCC TC LRUM DAoM ERSC SCC PFM SCF CoS SSE HDCL1 |
| GMM_DEFINE_MOCS( 0 , 0 , 0 , 1 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 2 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 3 , 0 , 0 , 1 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 4 , 0 , 0 , 3 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 5 , 0 , 0 , 1 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 6 , 0 , 0 , 1 , 3 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 7 , 0 , 0 , 3 , 3 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 8 , 0 , 0 , 1 , 3 , 1 , 2 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 9 , 0 , 0 , 3 , 3 , 1 , 2 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 10 , 0 , 0 , 1 , 3 , 1 , 3 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 11 , 0 , 0 , 3 , 3 , 1 , 3 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 12 , 0 , 0 , 1 , 3 , 1 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 13 , 0 , 0 , 3 , 3 , 1 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 14 , 0 , 0 , 1 , 3 , 1 , 2 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 15 , 0 , 0 , 3 , 3 , 1 , 2 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 16 , 0 , 0 , 1 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 1 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 17 , 0 , 0 , 3 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 1 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 18 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 3 , 0 ) |
| GMM_DEFINE_MOCS( 19 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 7 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 20 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 3 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 21 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 1 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 22 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 1 , 3 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 23 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 1 , 7 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 48 , 0 , 0 , 3 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 1 ) |
| GMM_DEFINE_MOCS( 49 , 0 , 0 , 3 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 1 ) |
| GMM_DEFINE_MOCS( 50 , 0 , 0 , 1 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 1 ) |
| GMM_DEFINE_MOCS( 51 , 0 , 0 , 1 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 1 ) |
| GMM_DEFINE_MOCS( 60 , 0 , 0 , 1 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 61 , 0 , 0 , 3 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 1 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 62 , 0 , 0 , 1 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 63 , 0 , 0 , 1 , 3 , 1 , 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| |
| |
| if(!pGmmGlobalContext->GetSkuTable().FtrLLCBypass || |
| GFX_GET_CURRENT_PRODUCT(pGmmGlobalContext->GetPlatformInfo().Platform) == IGFX_ROCKETLAKE) |
| { |
| GMM_DEFINE_MOCS( 16 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 17 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| GMM_DEFINE_MOCS( 61 , 0 , 0 , 3 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) |
| } |
| // clang-format on |
| |
| CurrentMaxMocsIndex = 23; |
| CurrentMaxL1HdcMocsIndex = 51; |
| CurrentMaxSpecialMocsIndex = 63; |
| |
| #undef GMM_DEFINE_MOCS |
| } |
