gpu_nomali.cc revision 11349
1/* 2 * Copyright (c) 2014-2016 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions are 16 * met: redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer; 18 * redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution; 21 * neither the name of the copyright holders nor the names of its 22 * contributors may be used to endorse or promote products derived from 23 * this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Andreas Sandberg 38 */ 39 40#include "dev/arm/gpu_nomali.hh" 41 42#include "debug/NoMali.hh" 43#include "dev/arm/base_gic.hh" 44#include "dev/arm/realview.hh" 45#include "enums/MemoryMode.hh" 46#include "mem/packet_access.hh" 47#include "params/NoMaliGpu.hh" 48 49static const std::map<Enums::NoMaliGpuType, nomali_gpu_type_t> gpuTypeMap{ 50 { Enums::T60x, NOMALI_GPU_T60X }, 51 { Enums::T62x, NOMALI_GPU_T62X }, 52 { Enums::T760, NOMALI_GPU_T760 }, 53}; 54 55NoMaliGpu::NoMaliGpu(const NoMaliGpuParams *p) 56 : PioDevice(p), 57 pioAddr(p->pio_addr), 58 platform(p->platform), 59 interruptMap{ 60 { NOMALI_INT_GPU, p->int_gpu }, 61 { NOMALI_INT_JOB, p->int_job }, 62 { NOMALI_INT_MMU, p->int_mmu }, 63 } 64{ 65 if (nomali_api_version() != NOMALI_API_VERSION) 66 panic("NoMali library API mismatch!\n"); 67 68 /* Setup the GPU configuration based on our param struct */ 69 nomali_config_t cfg; 70 memset(&cfg, 0, sizeof(cfg)); 71 72 const auto it_gpu(gpuTypeMap.find(p->gpu_type)); 73 if (it_gpu == gpuTypeMap.end()) { 74 fatal("Unrecognized GPU type: %s (%i)\n", 75 Enums::NoMaliGpuTypeStrings[p->gpu_type], p->gpu_type); 76 } 77 cfg.type = it_gpu->second; 78 79 cfg.ver_maj = p->ver_maj; 80 cfg.ver_min = p->ver_min; 81 cfg.ver_status = p->ver_status; 82 83 panicOnErr( 84 nomali_create(&nomali, &cfg), 85 "Failed to instantiate NoMali"); 86 87 88 /* Setup an interrupt callback */ 89 nomali_callback_t cbk_int; 90 cbk_int.type = NOMALI_CALLBACK_INT; 91 cbk_int.usr = (void *)this; 92 cbk_int.func.interrupt = NoMaliGpu::_interrupt; 93 setCallback(cbk_int); 94 95 panicOnErr( 96 nomali_get_info(nomali, &nomaliInfo), 97 "Failed to get NoMali information struct"); 98} 99 100NoMaliGpu::~NoMaliGpu() 101{ 102 nomali_destroy(nomali); 103} 104 105void 106NoMaliGpu::serialize(CheckpointOut &cp) const 107{ 108 std::vector<uint32_t> regs(nomaliInfo.reg_size >> 2); 109 110 for (int i = 0; i < nomaliInfo.reg_size; i += 4) 111 regs[i >> 2] = readRegRaw(i); 112 113 SERIALIZE_CONTAINER(regs); 114} 115 116void 117NoMaliGpu::unserialize(CheckpointIn &cp) 118{ 119 std::vector<uint32_t> regs(nomaliInfo.reg_size >> 2); 120 121 UNSERIALIZE_CONTAINER(regs); 122 123 for (int i = 0; i < nomaliInfo.reg_size; i += 4) 124 writeRegRaw(i, regs[i >> 2]); 125} 126 127Tick 128NoMaliGpu::read(PacketPtr pkt) 129{ 130 assert(pkt->getAddr() >= pioAddr); 131 const Addr addr(pkt->getAddr() - pioAddr); 132 const unsigned size(pkt->getSize()); 133 134 if (addr + size >= nomaliInfo.reg_size) 135 panic("GPU register '0x%x' out of range!\n", addr); 136 137 if (size != 4) 138 panic("Unexpected GPU register read size: %i\n", size); 139 else if (addr & 0x3) 140 panic("Unaligned GPU read: %i\n", size); 141 142 pkt->set<uint32_t>(readReg(addr)); 143 pkt->makeResponse(); 144 145 return 0; 146} 147 148Tick 149NoMaliGpu::write(PacketPtr pkt) 150{ 151 assert(pkt->getAddr() >= pioAddr); 152 const Addr addr(pkt->getAddr() - pioAddr); 153 const unsigned size(pkt->getSize()); 154 155 if (addr + size >= nomaliInfo.reg_size) 156 panic("GPU register '0x%x' out of range!\n", addr); 157 158 if (size != 4) 159 panic("Unexpected GPU register write size: %i\n", size); 160 else if (addr & 0x3) 161 panic("Unaligned GPU write: %i\n", size); 162 163 writeReg(addr, pkt->get<uint32_t>()); 164 pkt->makeAtomicResponse(); 165 166 return 0; 167} 168 169AddrRangeList 170NoMaliGpu::getAddrRanges() const 171{ 172 return AddrRangeList({ RangeSize(pioAddr, nomaliInfo.reg_size) }); 173} 174 175void 176NoMaliGpu::reset() 177{ 178 DPRINTF(NoMali, "reset()\n"); 179 180 panicOnErr( 181 nomali_reset(nomali), 182 "Failed to reset GPU"); 183} 184 185uint32_t 186NoMaliGpu::readReg(nomali_addr_t reg) 187{ 188 uint32_t value; 189 190 panicOnErr( 191 nomali_reg_read(nomali, &value, reg), 192 "GPU register read failed"); 193 194 DPRINTF(NoMali, "readReg(0x%x): 0x%x\n", 195 reg, value); 196 197 return value; 198} 199 200 201void 202NoMaliGpu::writeReg(nomali_addr_t reg, uint32_t value) 203{ 204 DPRINTF(NoMali, "writeReg(0x%x, 0x%x)\n", 205 reg, value); 206 207 panicOnErr( 208 nomali_reg_write(nomali, reg, value), 209 "GPU register write failed"); 210} 211 212uint32_t 213NoMaliGpu::readRegRaw(nomali_addr_t reg) const 214{ 215 uint32_t value; 216 217 panicOnErr( 218 nomali_reg_read_raw(nomali, &value, reg), 219 "GPU raw register read failed"); 220 221 return value; 222} 223 224 225void 226NoMaliGpu::writeRegRaw(nomali_addr_t reg, uint32_t value) 227{ 228 panicOnErr( 229 nomali_reg_write_raw(nomali, reg, value), 230 "GPU raw register write failed"); 231} 232 233bool 234NoMaliGpu::intState(nomali_int_t intno) 235{ 236 int state = 0; 237 panicOnErr( 238 nomali_int_state(nomali, &state, intno), 239 "Failed to get interrupt state"); 240 241 return !!state; 242} 243 244void 245NoMaliGpu::gpuPanic(nomali_error_t err, const char *msg) 246{ 247 panic("%s: %s\n", msg, nomali_errstr(err)); 248} 249 250 251void 252NoMaliGpu::onInterrupt(nomali_int_t intno, bool set) 253{ 254 const auto it_int(interruptMap.find(intno)); 255 if (it_int == interruptMap.end()) 256 panic("Unhandled interrupt from NoMali: %i\n", intno); 257 258 DPRINTF(NoMali, "Interrupt %i->%i: %i\n", 259 intno, it_int->second, set); 260 261 assert(platform); 262 assert(platform->gic); 263 264 if (set) 265 platform->gic->sendInt(it_int->second); 266 else 267 platform->gic->clearInt(it_int->second); 268} 269 270void 271NoMaliGpu::setCallback(const nomali_callback_t &callback) 272{ 273 DPRINTF(NoMali, "Registering callback %i\n", 274 callback.type); 275 276 panicOnErr( 277 nomali_set_callback(nomali, &callback), 278 "Failed to register callback"); 279} 280 281void 282NoMaliGpu::_interrupt(nomali_handle_t h, void *usr, 283 nomali_int_t intno, int set) 284{ 285 NoMaliGpu *_this(static_cast<NoMaliGpu *>(usr)); 286 287 _this->onInterrupt(intno, !!set); 288} 289 290NoMaliGpu * 291NoMaliGpuParams::create() 292{ 293 return new NoMaliGpu(this); 294} 295