1 /*==============================================================================
2 Copyright(c) 2017 Intel Corporation
3 
4 Permission is hereby granted, free of charge, to any person obtaining a
5 copy of this software and associated documentation files(the "Software"),
6 to deal in the Software without restriction, including without limitation
7 the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 and / or sell copies of the Software, and to permit persons to whom the
9 Software is furnished to do so, subject to the following conditions:
10 
11 The above copyright notice and this permission notice shall be included
12 in all copies or substantial portions of the Software.
13 
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 OTHER DEALINGS IN THE SOFTWARE.
21 ============================================================================*/
22 
23 #include "GmmGen9CachePolicyULT.h"
24 
25 using namespace std;
26 
27 /////////////////////////////////////////////////////////////////////////////////////
28 /// Sets up common environment for Cache Policy fixture tests. this is called once per
29 /// test case before executing all tests under resource fixture test case.
30 /// It also calls SetupTestCase from CommonULT to initialize global context and others.
31 ///
32 /////////////////////////////////////////////////////////////////////////////////////
SetUpTestCase()33 void CTestGen9CachePolicy::SetUpTestCase()
34 {
35     GfxPlatform.eProductFamily    = IGFX_SKYLAKE;
36     GfxPlatform.eRenderCoreFamily = IGFX_GEN9_CORE;
37 
38     AllocateAdapterInfo();
39 
40     pGfxAdapterInfo->SystemInfo.L3CacheSizeInKb                         = 768;
41     pGfxAdapterInfo->SystemInfo.LLCCacheSizeInKb                        = 2 * 1024;   //2 MB
42     pGfxAdapterInfo->SystemInfo.EdramSizeInKb                           = 128 * 1024; //128 MB
43     const_cast<SKU_FEATURE_TABLE &>(pGfxAdapterInfo->SkuTable).FtrEDram = 1;
44 
45     CommonULT::SetUpTestCase();
46 
47     printf("%s\n", __FUNCTION__);
48 }
49 
50 /////////////////////////////////////////////////////////////////////////////////////
51 /// cleans up once all the tests finish execution.  It also calls TearDownTestCase
52 /// from CommonULT to destroy global context and others.
53 ///
54 /////////////////////////////////////////////////////////////////////////////////////
TearDownTestCase()55 void CTestGen9CachePolicy::TearDownTestCase()
56 {
57     printf("%s\n", __FUNCTION__);
58 
59     CommonULT::TearDownTestCase();
60 }
61 
CheckL3CachePolicy()62 void CTestGen9CachePolicy::CheckL3CachePolicy()
63 {
64     const uint32_t L3_WB_CACHEABLE = 0x3;
65     const uint32_t L3_UNCACHEABLE  = 0x1;
66 
67     // Check Usage MOCS index against MOCS settings
68     for(uint32_t Usage = GMM_RESOURCE_USAGE_UNKNOWN; Usage < GMM_RESOURCE_USAGE_MAX; Usage++)
69     {
70         GMM_CACHE_POLICY_ELEMENT     ClientRequest   = pGmmULTClientContext->GetCachePolicyElement((GMM_RESOURCE_USAGE_TYPE)Usage);
71         uint32_t                     AssignedMocsIdx = ClientRequest.MemoryObjectOverride.Gen9.Index;
72         GMM_CACHE_POLICY_TBL_ELEMENT Mocs            = pGmmULTClientContext->GetCachePolicyTlbElement(AssignedMocsIdx);
73 
74         EXPECT_EQ(0, Mocs.L3.ESC) << "Usage# " << Usage << ": ESC is non-zero";
75         EXPECT_EQ(0, Mocs.L3.SCC) << "Usage# " << Usage << ": SCC is non-zero";
76         EXPECT_EQ(0, Mocs.L3.Reserved) << "Usage# " << Usage << ": Reserved field is non-zero";
77 
78         if(ClientRequest.L3)
79         {
80             EXPECT_EQ(L3_WB_CACHEABLE, Mocs.L3.Cacheability) << "Usage# " << Usage << ": Incorrect L3 cachebility setting";
81         }
82         else
83         {
84             EXPECT_EQ(L3_UNCACHEABLE, Mocs.L3.Cacheability) << "Usage# " << Usage << ": Incorrect L3 cachebility setting";
85         }
86     }
87 }
88 
89 
TEST_F(CTestGen9CachePolicy,TestL3CachePolicy)90 TEST_F(CTestGen9CachePolicy, TestL3CachePolicy)
91 {
92     CheckL3CachePolicy();
93 }
94 
95 
CheckLlcEdramCachePolicy()96 void CTestGen9CachePolicy::CheckLlcEdramCachePolicy()
97 {
98     const uint32_t TargetCache_ELLC     = 0;
99     const uint32_t TargetCache_LLC      = 1;
100     const uint32_t TargetCache_LLC_ELLC = 2;
101 
102     const uint32_t LeCC_UNCACHEABLE  = 0x1;
103     const uint32_t LeCC_WB_CACHEABLE = 0x3;
104 
105     // Check Usage MOCS index against MOCS settings
106     for(uint32_t Usage = GMM_RESOURCE_USAGE_UNKNOWN; Usage < GMM_RESOURCE_USAGE_MAX; Usage++)
107     {
108         GMM_CACHE_POLICY_ELEMENT     ClientRequest   = pGmmULTClientContext->GetCachePolicyElement((GMM_RESOURCE_USAGE_TYPE)Usage);
109         uint32_t                     AssignedMocsIdx = ClientRequest.MemoryObjectOverride.Gen9.Index;
110         GMM_CACHE_POLICY_TBL_ELEMENT Mocs            = pGmmULTClientContext->GetCachePolicyTlbElement(AssignedMocsIdx);
111 
112         // Check for unused fields
113         EXPECT_EQ(0, Mocs.LeCC.AOM) << "Usage# " << Usage << ": AOM is non-zero";
114         EXPECT_EQ(0, Mocs.LeCC.CoS) << "Usage# " << Usage << ": CoS is non-zero";
115         EXPECT_EQ(0, Mocs.LeCC.PFM) << "Usage# " << Usage << ": PFM is non-zero";
116         EXPECT_EQ(0, Mocs.LeCC.SCC) << "Usage# " << Usage << ": SCC is non-zero";
117         EXPECT_EQ(0, Mocs.LeCC.SCF) << "Usage# " << Usage << ": SCF is non-zero";
118         EXPECT_EQ(0, Mocs.LeCC.SelfSnoop) << "Usage# " << Usage << ": Self Snoop is non-zero";
119         EXPECT_EQ(0, Mocs.LeCC.ESC) << "Usage# " << Usage << ": ESC is non-zero";
120         EXPECT_EQ(0, Mocs.LeCC.Reserved) << "Usage# " << Usage << ": Reserved field is non-zero";
121 
122         // Check for age
123         EXPECT_EQ(ClientRequest.AGE, Mocs.LeCC.LRUM) << "Usage# " << Usage << ": Incorrect AGE settings";
124 
125         if(!ClientRequest.LLC && !ClientRequest.ELLC) // Uncached
126         {
127             EXPECT_EQ(LeCC_UNCACHEABLE, Mocs.LeCC.Cacheability) << "Usage# " << Usage << ": Incorrect LLC/eDRAM cachebility setting";
128         }
129         else
130         {
131             EXPECT_EQ(LeCC_WB_CACHEABLE, Mocs.LeCC.Cacheability) << "Usage# " << Usage << ": Incorrect LLC/eDRAM cachebility setting";
132 
133             if(ClientRequest.LLC && !ClientRequest.ELLC) // LLC only
134             {
135                 EXPECT_EQ(TargetCache_LLC, Mocs.LeCC.TargetCache) << "Usage# " << Usage << ": Incorrect target cache setting";
136             }
137             else if(!ClientRequest.LLC && ClientRequest.ELLC) // eLLC only
138             {
139                 EXPECT_EQ(TargetCache_ELLC, Mocs.LeCC.TargetCache) << "Usage# " << Usage << ": Incorrect target cache setting";
140             }
141             else
142             {
143                 EXPECT_EQ(TargetCache_LLC_ELLC, Mocs.LeCC.TargetCache) << "Usage# " << Usage << ": Incorrect target cache setting";
144             }
145         }
146     }
147 }
148 
TEST_F(CTestGen9CachePolicy,TestLlcEdramCachePolicy)149 TEST_F(CTestGen9CachePolicy, TestLlcEdramCachePolicy)
150 {
151     CheckLlcEdramCachePolicy();
152 }
153