| 1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== |
| 3 | * |
| 4 | * OpenSPARC T2 Processor File: pci_bus.h |
| 5 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 6 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. |
| 7 | * |
| 8 | * The above named program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public |
| 10 | * License version 2 as published by the Free Software Foundation. |
| 11 | * |
| 12 | * The above named program is distributed in the hope that it will be |
| 13 | * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public |
| 18 | * License along with this work; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. |
| 20 | * |
| 21 | * ========== Copyright Header End ============================================ |
| 22 | */ |
| 23 | #ifndef _PCI_BUS_NEW_IMPL_H |
| 24 | #define _PCI_BUS_NEW_IMPL_H |
| 25 | |
| 26 | |
| 27 | #include <list> |
| 28 | #include <map> |
| 29 | #include <stdio.h> |
| 30 | |
| 31 | #include "pci.h" |
| 32 | #include "arg.h" |
| 33 | using namespace std; |
| 34 | |
| 35 | class pciBus:public Module, pciBusIf{ |
| 36 | |
| 37 | |
| 38 | public: |
| 39 | struct pciDevInfo{ |
| 40 | const char * name; |
| 41 | mmi_instance_t instance; |
| 42 | genericPciDevIf * devIf; |
| 43 | uint8_t device; |
| 44 | uint8_t function; |
| 45 | |
| 46 | pciDevInfo(){ |
| 47 | name = 0; |
| 48 | devIf = 0; |
| 49 | device = function = -1; |
| 50 | } |
| 51 | |
| 52 | pciDevInfo(const char * n, mmi_instance_t i, genericPciDevIf * dI, uint8_t d, uint8_t f = 0){ |
| 53 | name = n; |
| 54 | device = d; |
| 55 | function = f; |
| 56 | instance = i; |
| 57 | devIf = dI; |
| 58 | } |
| 59 | |
| 60 | void print(){ |
| 61 | printf("name <%s>, dev <%d>, fun <%d>\n",name, device, function); |
| 62 | } |
| 63 | |
| 64 | }; |
| 65 | |
| 66 | struct pciRange{ |
| 67 | uint64_t base; |
| 68 | uint64_t end; // base + size - 1 |
| 69 | pciDevInfo * devInfo; // pointer to the info struct for this device |
| 70 | |
| 71 | pciRange(){ |
| 72 | base = end = -1; |
| 73 | devInfo = 0; |
| 74 | } |
| 75 | pciRange(uint64_t b, uint64_t e, pciDevInfo * di){ |
| 76 | base = b; end = e; devInfo = di; |
| 77 | } |
| 78 | |
| 79 | void print(){ |
| 80 | devInfo->print(); |
| 81 | printf("base <%llx> end <%llx>\n", base, end); |
| 82 | } |
| 83 | |
| 84 | }; |
| 85 | |
| 86 | //comparison function (reverse than normal default case) |
| 87 | class compare{ |
| 88 | public: |
| 89 | bool operator()(uint64_t key1, uint64_t key2)const{ |
| 90 | return key1 > key2; |
| 91 | } |
| 92 | }; |
| 93 | |
| 94 | |
| 95 | private: |
| 96 | |
| 97 | typedef map<uint64_t , pciRange *,compare> pciDevMap; |
| 98 | typedef map<uint64_t , pciRange *,compare>::iterator pciDevMapIterator; |
| 99 | |
| 100 | |
| 101 | |
| 102 | pciDevInfo *searchDevInfoListByName(const char * name){ |
| 103 | list<pciDevInfo *>::iterator i; |
| 104 | |
| 105 | for(i = devInfoList.begin(); i != devInfoList.end(); i++) |
| 106 | if(!strcmp(name, (*i)->name)) |
| 107 | return *i; |
| 108 | return 0; |
| 109 | } |
| 110 | |
| 111 | pciDevInfo *searchDevInfoListByDevFun(uint8_t dev, uint8_t fun){ |
| 112 | list<pciDevInfo *>::iterator i; |
| 113 | |
| 114 | for(i = devInfoList.begin(); i != devInfoList.end(); i++) |
| 115 | if(((*i)->device == dev) && ((*i)->function == fun)) |
| 116 | return *i; |
| 117 | |
| 118 | return 0; |
| 119 | } |
| 120 | |
| 121 | |
| 122 | bool addSpace(pciRange * pI,pci_space_t space){ |
| 123 | pciDevMapIterator dmIter; |
| 124 | |
| 125 | dmIter = pciAddrSpace[space].lower_bound(pI->base); |
| 126 | for(dmIter = pciAddrSpace[space].begin(); dmIter != pciAddrSpace[space].end(); dmIter++){ |
| 127 | if(pI->base >= dmIter->second->base && pI->base <= dmIter->second->end || \ |
| 128 | pI->end >= dmIter->second->base && pI->end <= dmIter->second->end || \ |
| 129 | pI->base <= dmIter->second->base && pI->end >= dmIter->second->end){ |
| 130 | if(strcmp(pI->devInfo->name,dmIter->second->devInfo->name)){ |
| 131 | printf("%s add Space error : Conflicting ranges\n",getName()); |
| 132 | printf("Existing device -->"); dmIter->second->print(); |
| 133 | printf("Conflicting device -->"); pI->print(); |
| 134 | } |
| 135 | return false; //range conflict |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | pciAddrSpace[space][pI->base] = pI; |
| 140 | return true; |
| 141 | } |
| 142 | |
| 143 | |
| 144 | bool removeMap(pciDevInfo * pI){ //remove all the mappings for device with info struct pI |
| 145 | pciDevMapIterator dmIter; |
| 146 | for(uint8_t i = 0; i < PCI_NSPACES; i++) |
| 147 | for(dmIter = pciAddrSpace[i].begin(); dmIter != pciAddrSpace[i].end(); dmIter++) |
| 148 | if(dmIter->second->devInfo == pI){ |
| 149 | pciDevMapIterator dmIter1 = ++dmIter; |
| 150 | pciAddrSpace[i].erase(--dmIter); |
| 151 | dmIter = dmIter1; |
| 152 | } |
| 153 | return true; |
| 154 | } |
| 155 | |
| 156 | bool removeSpace(uint64_t base, pci_space_t space){ |
| 157 | return pciAddrSpace[space].erase(base); |
| 158 | } |
| 159 | |
| 160 | |
| 161 | static const char * pci_space_name(pci_space_t space){ |
| 162 | switch(space){ |
| 163 | case PCI_CFG: |
| 164 | return "PCI config"; |
| 165 | case PCI_IO: |
| 166 | return "PCI IO"; |
| 167 | case PCI_MEM32: |
| 168 | return "PCI MEM32"; |
| 169 | case PCI_MEM64: |
| 170 | return "PCI MEM64"; |
| 171 | default: |
| 172 | return "Unknow!!"; |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | list<pciDevInfo*> devInfoList; //list of devices present on the pci Bus |
| 177 | |
| 178 | pciDevMap pciAddrSpace[PCI_NSPACES]; |
| 179 | |
| 180 | const char * bridgeName; |
| 181 | //mmi_instance_t bridgeMod; |
| 182 | mmi_instance_t bridgeMod; |
| 183 | pciBridgeIf * bridgeIf; |
| 184 | |
| 185 | |
| 186 | public: |
| 187 | pciBus(const char *_modname, const char *_instance_name); |
| 188 | ~pciBus(); |
| 189 | |
| 190 | void modinfo(); |
| 191 | bool parse_arg(const char *arg); |
| 192 | void module_added(mmi_instance_t , const char *target_name); |
| 193 | void module_deleted(mmi_instance_t, const char *target_name); |
| 194 | void * get_interface(const char *name); |
| 195 | bool check_args(); |
| 196 | const char * get_help(); |
| 197 | |
| 198 | bool busif_add_device(const char *devname, uint8_t device, uint8_t function); |
| 199 | bool busif_delete_device(const char *devname); |
| 200 | bool busif_map(const char *devname, pci_space_t, uint64_t base, uint64_t size); |
| 201 | bool busif_unmap(const char *devname, pci_space_t, uint64_t base); |
| 202 | int busif_add_interrupt(int device, int dev_type, int slot_irl[], bool isMulti = false); |
| 203 | int busif_free_interrupt(int device); |
| 204 | bool busif_interrupt_in(bool set, int dev_number, int line, SAM_DeviceId *samId); |
| 205 | uint64_t busif_get_lowest_base(pci_space_t, uint64_t sz); |
| 206 | |
| 207 | pciXactnStatus busif_dma(bool wr, uint64_t vaddr, void *data, long count, SAM_DeviceId *samId); |
| 208 | pciXactnStatus busif_special_cycle(uint16_t mssg, uint16_t data); |
| 209 | pciXactnStatus busif_intr_ack(uint64_t * data); |
| 210 | pciXactnStatus busif_access_w_size(pci_space_t, uint64_t paddr, uint64_t offset, bool_t wr, uint64_t* buf, uint8_t size, SAM_DeviceId * samId); |
| 211 | pciXactnStatus busif_access_w_byte_enables(pci_space_t, uint64_t paddr, uint64_t offset, bool_t wr, uint64_t* buf, uint8_t byte_enable, SAM_DeviceId * samId); |
| 212 | int busif_get_busno(){return bridgeIf->busif_get_secondary_busno();} |
| 213 | }; |
| 214 | |
| 215 | #endif |
| 216 | |
| 217 | |