| 1 | /* $Id: expandospu_init.c 57058 2015-07-23 06:19:30Z vboxsync $ */
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| 2 | /* Copyright (c) 2001, Stanford University
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| 3 | * All rights reserved
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| 4 | *
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| 5 | * See the file LICENSE.txt for information on redistributing this software.
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| 6 | */
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| 7 |
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| 8 | #include <stdio.h>
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| 9 | #include "cr_spu.h"
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| 10 | #include "cr_dlm.h"
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| 11 | #include "cr_hash.h"
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| 12 | #include "cr_mem.h"
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| 13 | #include "expandospu.h"
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| 14 |
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| 15 | /* This magic number is used for SSM data consistency check. */
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| 16 | #define VBOX_EXPANDOSPU_SSM_MAGIC 0x3d3d3d3d
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| 17 | /* Modify VBox Expando SPU SSM version if SSM data structure changed. */
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| 18 | #define VBOX_EXPANDOSPU_SSM_VERSION_ONE 1
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| 19 | #define VBOX_EXPANDOSPU_SSM_VERSION VBOX_EXPANDOSPU_SSM_VERSION_ONE
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| 20 |
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| 21 | ExpandoSPU expando_spu;
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| 22 |
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| 23 | static SPUFunctions expando_functions = {
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| 24 | NULL, /* CHILD COPY */
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| 25 | NULL, /* DATA */
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| 26 | _cr_expando_table /* THE ACTUAL FUNCTIONS */
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| 27 | };
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| 28 |
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| 29 | /*
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| 30 | * Structure of SSM data:
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| 31 | *
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| 32 | * <VBOX_EXPANDOSPU_SSM_MAGIC>
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| 33 | * <VBOX_EXPANDOSPU_SSM_VERSION>
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| 34 | * <Number of Expando SPU contexts>
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| 35 | *
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| 36 | * <Context ID>
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| 37 | * <CRDLMContextState structure>
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| 38 | * <DLM module data>
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| 39 | *
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| 40 | * <Next context...>
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| 41 | *
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| 42 | * <VBOX_EXPANDOSPU_SSM_MAGIC>
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| 43 | */
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| 44 |
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| 45 | static void
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| 46 | expandoSPUSaveContextCb(unsigned long id, void *pData1, void *pData2)
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| 47 | {
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| 48 | uint32_t ui32 = (uint32_t)id;
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| 49 | PSSMHANDLE pSSM = (PSSMHANDLE)pData2;
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| 50 | int32_t rc;
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| 51 |
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| 52 | ExpandoContextState *pExpandoContextState = (ExpandoContextState *)pData1;
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| 53 | CRDLMContextState dlmContextState;
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| 54 |
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| 55 | /* Save context ID. */
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| 56 | rc = SSMR3PutU32(pSSM, ui32); AssertRCReturnVoid(rc);
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| 57 |
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| 58 | /* Save DLM context state. Clean fields which will not be valid on restore (->dlm and ->currentListInfo).
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| 59 | * We interested only in fields: currentListIdentifier, currentListMode and listBase. */
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| 60 | crMemcpy(&dlmContextState, pExpandoContextState->dlmContext, sizeof(CRDLMContextState));
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| 61 | dlmContextState.dlm = NULL;
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| 62 | dlmContextState.currentListInfo = NULL;
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| 63 | rc = SSMR3PutMem(pSSM, &dlmContextState, sizeof(CRDLMContextState)); AssertRCReturnVoid(rc);
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| 64 |
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| 65 | /* Delegate the rest of work to DLM module. */
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| 66 | crDLMSaveState(pExpandoContextState->dlmContext->dlm, pSSM);
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| 67 | }
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| 68 |
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| 69 | static int
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| 70 | expandoSPUSaveState(void *pData)
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| 71 | {
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| 72 | uint32_t magic = VBOX_EXPANDOSPU_SSM_MAGIC;
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| 73 | uint32_t version = VBOX_EXPANDOSPU_SSM_VERSION;
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| 74 | PSSMHANDLE pSSM = (PSSMHANDLE)pData;
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| 75 | int32_t rc;
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| 76 | uint32_t cStates;
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| 77 |
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| 78 | crDebug("Saving state of Expando SPU.");
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| 79 |
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| 80 | AssertReturn(pSSM, 1);
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| 81 |
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| 82 | /* Magic & version first. */
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| 83 | rc = SSMR3PutU32(pSSM, magic); AssertRCReturn(rc, rc);
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| 84 | rc = SSMR3PutU32(pSSM, version); AssertRCReturn(rc, rc);
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| 85 |
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| 86 | /* Store number of Expando SPU contexts. */
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| 87 | cStates = (uint32_t)crHashtableNumElements(expando_spu.contextTable);
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| 88 | rc = SSMR3PutU32(pSSM, cStates); AssertRCReturn(rc, rc);
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| 89 |
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| 90 | /* Walk over context table and store required data. */
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| 91 | crHashtableWalk(expando_spu.contextTable, expandoSPUSaveContextCb, pSSM);
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| 92 |
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| 93 | /* Expando SPU and DLM data should end with magic (consistency check). */
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| 94 | rc = SSMR3PutU32(pSSM, magic); AssertRCReturn(rc, rc);
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| 95 |
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| 96 | return 0;
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| 97 | }
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| 98 |
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| 99 | static int
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| 100 | expandoSPULoadState(void *pData)
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| 101 | {
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| 102 | uint32_t magic = 0;
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| 103 | uint32_t version = 0;
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| 104 | PSSMHANDLE pSSM = (PSSMHANDLE)pData;
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| 105 | int32_t rc;
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| 106 |
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| 107 | crDebug("Loading state of Expando SPU.");
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| 108 |
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| 109 | AssertReturn(pSSM, 1);
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| 110 |
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| 111 | /* Check magic and version. */
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| 112 | rc = SSMR3GetU32(pSSM, &magic);
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| 113 | AssertRCReturn(rc, rc);
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| 114 |
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| 115 | if (magic == VBOX_EXPANDOSPU_SSM_MAGIC)
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| 116 | {
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| 117 | rc = SSMR3GetU32(pSSM, &version);
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| 118 | AssertRCReturn(rc, rc);
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| 119 |
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| 120 | if (version >= VBOX_EXPANDOSPU_SSM_VERSION_ONE)
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| 121 | {
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| 122 | uint32_t cStates = 0;
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| 123 | uint32_t i;
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| 124 | bool fSuccess = false;
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| 125 |
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| 126 | CRDLMContextState *pCurrentDLMState;
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| 127 | CRContext *pCurrentCRState;
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| 128 |
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| 129 | /* Remember current state. */
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| 130 | pCurrentDLMState = crDLMGetCurrentState();
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| 131 | pCurrentCRState = crStateGetCurrent();
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| 132 |
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| 133 | /* Restore number of Expando SPU contexts. */
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| 134 | rc = SSMR3GetU32(pSSM, &cStates);
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| 135 | AssertRCReturn(rc, rc);
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| 136 |
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| 137 | /* Restore and update Expando SPU contexts one by one. */
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| 138 | for (i = 0; i < cStates; i++)
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| 139 | {
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| 140 | uint32_t idContext = 0;
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| 141 | ExpandoContextState *pExpandoContextState;
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| 142 |
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| 143 | rc = SSMR3GetU32(pSSM, &idContext);
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| 144 | AssertRCReturn(rc, rc);
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| 145 |
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| 146 | /* Find context which was previously created by CR Server. */
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| 147 | pExpandoContextState = crHashtableSearch(expando_spu.contextTable, idContext);
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| 148 | if (pExpandoContextState)
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| 149 | {
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| 150 | CRDLMContextState dlmContextState;
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| 151 |
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| 152 | /* Restore and update DLM context state. */
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| 153 | rc = SSMR3GetMem(pSSM, &dlmContextState, sizeof(CRDLMContextState));
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| 154 | if (RT_SUCCESS(rc))
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| 155 | {
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| 156 | pExpandoContextState->dlmContext->currentListIdentifier = dlmContextState.currentListIdentifier;
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| 157 | pExpandoContextState->dlmContext->currentListMode = dlmContextState.currentListMode;
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| 158 | pExpandoContextState->dlmContext->listBase = dlmContextState.listBase;
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| 159 |
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| 160 | crDLMSetCurrentState(pExpandoContextState->dlmContext);
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| 161 | crStateMakeCurrent(pExpandoContextState->State);
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| 162 |
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| 163 | /* Delegate the rest of work to DLM module. */
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| 164 | fSuccess = crDLMLoadState(pExpandoContextState->dlmContext->dlm, pSSM, &expando_spu.server->dispatch);
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| 165 | if (fSuccess)
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| 166 | {
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| 167 | continue;
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| 168 | }
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| 169 | else
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| 170 | {
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| 171 | crError("Expando SPU: stop restoring Display Lists.");
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| 172 | break;
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| 173 | }
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| 174 | }
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| 175 | else
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| 176 | {
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| 177 | crError("Expando SPU: unable to load state: state file structure error (1).");
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| 178 | break;
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| 179 | }
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| 180 | }
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| 181 | else
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| 182 | {
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| 183 | crError("Expando SPU: unable to load state: no context ID %u found.", idContext);
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| 184 | break;
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| 185 | }
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| 186 | }
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| 187 |
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| 188 | /* Restore original state. */
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| 189 | crDLMSetCurrentState(pCurrentDLMState);
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| 190 | crStateMakeCurrent(pCurrentCRState);
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| 191 |
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| 192 | if (fSuccess)
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| 193 | {
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| 194 | /* Expando SPU and DLM data should end with magic (consistency check). */
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| 195 | magic = 0;
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| 196 | rc = SSMR3GetU32(pSSM, &magic);
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| 197 | if (RT_SUCCESS(rc))
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| 198 | {
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| 199 | if (magic == VBOX_EXPANDOSPU_SSM_MAGIC)
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| 200 | {
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| 201 | crInfo("Expando SPU state loaded.");
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| 202 | return 0;
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| 203 | }
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| 204 | else
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| 205 | crError("Expando SPU: unable to load state: SSM data corrupted.");
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| 206 | }
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| 207 | else
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| 208 | crError("Expando SPU: unable to load state: state file structure error (2): no magic.");
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| 209 | }
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| 210 | else
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| 211 | crError("Expando SPU: unable to load state: some list(s) could not be restored.");
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| 212 | }
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| 213 | else
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| 214 | crError("Expando SPU: unable to load state: unexpected SSM version (0x%x).", version);
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| 215 | }
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| 216 | else
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| 217 | crError("Expando SPU: unable to load state: SSM data possibly corrupted.");
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| 218 |
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| 219 | return VERR_SSM_UNEXPECTED_DATA;
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| 220 | }
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| 221 |
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| 222 | static SPUFunctions *
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| 223 | expandoSPUInit(int id, SPU *child, SPU *self, unsigned int context_id, unsigned int num_contexts)
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| 224 | {
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| 225 |
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| 226 | (void)self;
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| 227 | (void)context_id;
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| 228 | (void)num_contexts;
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| 229 |
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| 230 | expando_spu.id = id;
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| 231 | expando_spu.has_child = 0;
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| 232 | expando_spu.server = NULL;
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| 233 |
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| 234 | if (child)
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| 235 | {
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| 236 | crSPUInitDispatchTable(&(expando_spu.child));
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| 237 | crSPUCopyDispatchTable(&(expando_spu.child), &(child->dispatch_table));
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| 238 | expando_spu.has_child = 1;
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| 239 | }
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| 240 |
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| 241 | crSPUInitDispatchTable(&(expando_spu.super));
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| 242 | crSPUCopyDispatchTable(&(expando_spu.super), &(self->superSPU->dispatch_table));
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| 243 | expandospuGatherConfiguration();
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| 244 |
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| 245 | /* Expando-specific initialization */
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| 246 | expando_spu.contextTable = crAllocHashtable();
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| 247 |
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| 248 | /* We'll be using the state tracker for each context */
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| 249 | crStateInit();
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| 250 |
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| 251 | /* Export optional interfaces for SPU save/restore. */
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| 252 | self->dispatch_table.spu_save_state = expandoSPUSaveState;
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| 253 | self->dispatch_table.spu_load_state = expandoSPULoadState;
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| 254 |
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| 255 | return &expando_functions;
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| 256 | }
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| 257 |
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| 258 | static void
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| 259 | expandoSPUSelfDispatch(SPUDispatchTable *self)
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| 260 | {
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| 261 | crSPUInitDispatchTable(&(expando_spu.self));
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| 262 | crSPUCopyDispatchTable(&(expando_spu.self), self);
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| 263 |
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| 264 | expando_spu.server = (CRServer *)(self->server);
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| 265 | }
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| 266 |
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| 267 |
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| 268 | static int
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| 269 | expandoSPUCleanup(void)
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| 270 | {
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| 271 | crFreeHashtable(expando_spu.contextTable, expando_free_context_state);
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| 272 | crStateDestroy();
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| 273 | return 1;
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| 274 | }
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| 275 |
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| 276 | int
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| 277 | SPULoad(char **name, char **super, SPUInitFuncPtr *init, SPUSelfDispatchFuncPtr *self,
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| 278 | SPUCleanupFuncPtr *cleanup, SPUOptionsPtr *options, int *flags)
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| 279 | {
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| 280 | *name = "expando";
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| 281 | *super = "render";
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| 282 | *init = expandoSPUInit;
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| 283 | *self = expandoSPUSelfDispatch;
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| 284 | *cleanup = expandoSPUCleanup;
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| 285 | *options = expandoSPUOptions;
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| 286 | *flags = (SPU_NO_PACKER|SPU_NOT_TERMINAL|SPU_MAX_SERVERS_ZERO);
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| 287 |
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| 288 | return 1;
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| 289 | }
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