gpu_nomali.cc revision 10916:5c76426fd9ee
1/* 2 * Copyright (c) 2014-2015 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 49NoMaliGpu::NoMaliGpu(const NoMaliGpuParams *p) 50 : PioDevice(p), 51 pioAddr(p->pio_addr), 52 platform(p->platform), 53 interruptMap{ 54 { NOMALI_INT_GPU, p->int_gpu }, 55 { NOMALI_INT_JOB, p->int_job }, 56 { NOMALI_INT_MMU, p->int_mmu }, 57 } 58{ 59 if (nomali_api_version() != NOMALI_API_VERSION) 60 panic("NoMali library API mismatch!\n"); 61 62 /* Setup the GPU configuration based on our param struct */ 63 nomali_config_t cfg; 64 memset(&cfg, 0, sizeof(cfg)); 65 66 switch (p->gpu_type) { 67 case Enums::T60x: 68 cfg.type = NOMALI_GPU_T60X; 69 break; 70 71 case Enums::T62x: 72 cfg.type = NOMALI_GPU_T62X; 73 break; 74 75 case Enums::T760: 76 cfg.type = NOMALI_GPU_T760; 77 break; 78 79 default: 80 fatal("Unknown GPU type\n"); 81 } 82 83 cfg.ver_maj = p->ver_maj; 84 cfg.ver_min = p->ver_min; 85 cfg.ver_status = p->ver_status; 86 87 panicOnErr( 88 nomali_create(&nomali, &cfg), 89 "Failed to instantiate NoMali"); 90 91 92 /* Setup an interrupt callback */ 93 nomali_callback_t cbk_int; 94 cbk_int.type = NOMALI_CALLBACK_INT; 95 cbk_int.usr = (void *)this; 96 cbk_int.func.interrupt = NoMaliGpu::_interrupt; 97 panicOnErr( 98 nomali_set_callback(nomali, &cbk_int), 99 "Failed to setup interrupt callback"); 100 101 panicOnErr( 102 nomali_get_info(nomali, &nomaliInfo), 103 "Failed to get NoMali information struct"); 104} 105 106NoMaliGpu::~NoMaliGpu() 107{ 108 nomali_destroy(nomali); 109} 110 111 112void 113NoMaliGpu::serialize(CheckpointOut &cp) const 114{ 115 std::vector<uint32_t> regs(nomaliInfo.reg_size >> 2); 116 117 for (int i = 0; i < nomaliInfo.reg_size; i += 4) 118 regs[i >> 2] = readRegRaw(i); 119 120 SERIALIZE_CONTAINER(regs); 121} 122 123void 124NoMaliGpu::unserialize(CheckpointIn &cp) 125{ 126 std::vector<uint32_t> regs(nomaliInfo.reg_size >> 2); 127 128 UNSERIALIZE_CONTAINER(regs); 129 130 for (int i = 0; i < nomaliInfo.reg_size; i += 4) 131 writeRegRaw(i, regs[i >> 2]); 132} 133 134Tick 135NoMaliGpu::read(PacketPtr pkt) 136{ 137 assert(pkt->getAddr() >= pioAddr); 138 const Addr addr(pkt->getAddr() - pioAddr); 139 const unsigned size(pkt->getSize()); 140 141 if (addr + size >= nomaliInfo.reg_size) 142 panic("GPU register '0x%x' out of range!\n", addr); 143 144 if (size != 4) 145 panic("Unexpected GPU register read size: %i\n", size); 146 else if (addr & 0x3) 147 panic("Unaligned GPU read: %i\n", size); 148 149 pkt->set<uint32_t>(readReg(addr)); 150 pkt->makeResponse(); 151 152 return 0; 153} 154 155Tick 156NoMaliGpu::write(PacketPtr pkt) 157{ 158 assert(pkt->getAddr() >= pioAddr); 159 const Addr addr(pkt->getAddr() - pioAddr); 160 const unsigned size(pkt->getSize()); 161 162 if (addr + size >= nomaliInfo.reg_size) 163 panic("GPU register '0x%x' out of range!\n", addr); 164 165 if (size != 4) 166 panic("Unexpected GPU register write size: %i\n", size); 167 else if (addr & 0x3) 168 panic("Unaligned GPU write: %i\n", size); 169 170 writeReg(addr, pkt->get<uint32_t>()); 171 pkt->makeAtomicResponse(); 172 173 return 0; 174} 175 176AddrRangeList 177NoMaliGpu::getAddrRanges() const 178{ 179 return AddrRangeList({ RangeSize(pioAddr, nomaliInfo.reg_size) }); 180} 181 182uint32_t 183NoMaliGpu::readReg(nomali_addr_t reg) 184{ 185 uint32_t value; 186 187 panicOnErr( 188 nomali_reg_read(nomali, &value, reg), 189 "GPU register read failed"); 190 191 DPRINTF(NoMali, "readReg(0x%x): 0x%x\n", 192 reg, value); 193 194 return value; 195} 196 197 198void 199NoMaliGpu::writeReg(nomali_addr_t reg, uint32_t value) 200{ 201 DPRINTF(NoMali, "writeReg(0x%x, 0x%x)\n", 202 reg, value); 203 204 panicOnErr( 205 nomali_reg_write(nomali, reg, value), 206 "GPU register write failed"); 207} 208 209uint32_t 210NoMaliGpu::readRegRaw(nomali_addr_t reg) const 211{ 212 uint32_t value; 213 214 panicOnErr( 215 nomali_reg_read_raw(nomali, &value, reg), 216 "GPU raw register read failed"); 217 218 return value; 219} 220 221 222void 223NoMaliGpu::writeRegRaw(nomali_addr_t reg, uint32_t value) 224{ 225 panicOnErr( 226 nomali_reg_write_raw(nomali, reg, value), 227 "GPU raw register write failed"); 228} 229 230void 231NoMaliGpu::_interrupt(nomali_handle_t h, void *usr, nomali_int_t intno, int set) 232{ 233 NoMaliGpu *_this(static_cast<NoMaliGpu *>(usr)); 234 235 _this->onInterrupt(h, intno, !!set); 236} 237 238void 239NoMaliGpu::onInterrupt(nomali_handle_t h, nomali_int_t intno, bool set) 240{ 241 const auto it_int(interruptMap.find(intno)); 242 if (it_int == interruptMap.end()) 243 panic("Unhandled interrupt from NoMali: %i\n", intno); 244 245 DPRINTF(NoMali, "Interrupt %i->%i: %i\n", 246 intno, it_int->second, set); 247 248 assert(platform); 249 assert(platform->gic); 250 251 if (set) 252 platform->gic->sendInt(it_int->second); 253 else 254 platform->gic->clearInt(it_int->second); 255} 256 257void 258NoMaliGpu::gpuPanic(nomali_error_t err, const char *msg) 259{ 260 panic("%s: %s\n", msg, nomali_errstr(err)); 261} 262 263NoMaliGpu * 264NoMaliGpuParams::create() 265{ 266 return new NoMaliGpu(this); 267} 268