gpu_nomali.cc revision 11350:ef6e57ac0d70
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 /* Setup a reset callback */ 96 nomali_callback_t cbk_rst; 97 cbk_rst.type = NOMALI_CALLBACK_RESET; 98 cbk_rst.usr = (void *)this; 99 cbk_rst.func.reset = NoMaliGpu::_reset; 100 setCallback(cbk_rst); 101 102 panicOnErr( 103 nomali_get_info(nomali, &nomaliInfo), 104 "Failed to get NoMali information struct"); 105} 106 107NoMaliGpu::~NoMaliGpu() 108{ 109 nomali_destroy(nomali); 110} 111 112 113void 114NoMaliGpu::init() 115{ 116 PioDevice::init(); 117 118 /* Reset the GPU here since the reset callback won't have been 119 * installed when the GPU was reset at instantiation time. 120 */ 121 reset(); 122} 123 124void 125NoMaliGpu::serialize(CheckpointOut &cp) const 126{ 127 std::vector<uint32_t> regs(nomaliInfo.reg_size >> 2); 128 129 for (int i = 0; i < nomaliInfo.reg_size; i += 4) 130 regs[i >> 2] = readRegRaw(i); 131 132 SERIALIZE_CONTAINER(regs); 133} 134 135void 136NoMaliGpu::unserialize(CheckpointIn &cp) 137{ 138 std::vector<uint32_t> regs(nomaliInfo.reg_size >> 2); 139 140 UNSERIALIZE_CONTAINER(regs); 141 142 for (int i = 0; i < nomaliInfo.reg_size; i += 4) 143 writeRegRaw(i, regs[i >> 2]); 144} 145 146Tick 147NoMaliGpu::read(PacketPtr pkt) 148{ 149 assert(pkt->getAddr() >= pioAddr); 150 const Addr addr(pkt->getAddr() - pioAddr); 151 const unsigned size(pkt->getSize()); 152 153 if (addr + size >= nomaliInfo.reg_size) 154 panic("GPU register '0x%x' out of range!\n", addr); 155 156 if (size != 4) 157 panic("Unexpected GPU register read size: %i\n", size); 158 else if (addr & 0x3) 159 panic("Unaligned GPU read: %i\n", size); 160 161 pkt->set<uint32_t>(readReg(addr)); 162 pkt->makeResponse(); 163 164 return 0; 165} 166 167Tick 168NoMaliGpu::write(PacketPtr pkt) 169{ 170 assert(pkt->getAddr() >= pioAddr); 171 const Addr addr(pkt->getAddr() - pioAddr); 172 const unsigned size(pkt->getSize()); 173 174 if (addr + size >= nomaliInfo.reg_size) 175 panic("GPU register '0x%x' out of range!\n", addr); 176 177 if (size != 4) 178 panic("Unexpected GPU register write size: %i\n", size); 179 else if (addr & 0x3) 180 panic("Unaligned GPU write: %i\n", size); 181 182 writeReg(addr, pkt->get<uint32_t>()); 183 pkt->makeAtomicResponse(); 184 185 return 0; 186} 187 188AddrRangeList 189NoMaliGpu::getAddrRanges() const 190{ 191 return AddrRangeList({ RangeSize(pioAddr, nomaliInfo.reg_size) }); 192} 193 194void 195NoMaliGpu::reset() 196{ 197 DPRINTF(NoMali, "reset()\n"); 198 199 panicOnErr( 200 nomali_reset(nomali), 201 "Failed to reset GPU"); 202} 203 204uint32_t 205NoMaliGpu::readReg(nomali_addr_t reg) 206{ 207 uint32_t value; 208 209 panicOnErr( 210 nomali_reg_read(nomali, &value, reg), 211 "GPU register read failed"); 212 213 DPRINTF(NoMali, "readReg(0x%x): 0x%x\n", 214 reg, value); 215 216 return value; 217} 218 219 220void 221NoMaliGpu::writeReg(nomali_addr_t reg, uint32_t value) 222{ 223 DPRINTF(NoMali, "writeReg(0x%x, 0x%x)\n", 224 reg, value); 225 226 panicOnErr( 227 nomali_reg_write(nomali, reg, value), 228 "GPU register write failed"); 229} 230 231uint32_t 232NoMaliGpu::readRegRaw(nomali_addr_t reg) const 233{ 234 uint32_t value; 235 236 panicOnErr( 237 nomali_reg_read_raw(nomali, &value, reg), 238 "GPU raw register read failed"); 239 240 return value; 241} 242 243 244void 245NoMaliGpu::writeRegRaw(nomali_addr_t reg, uint32_t value) 246{ 247 panicOnErr( 248 nomali_reg_write_raw(nomali, reg, value), 249 "GPU raw register write failed"); 250} 251 252bool 253NoMaliGpu::intState(nomali_int_t intno) 254{ 255 int state = 0; 256 panicOnErr( 257 nomali_int_state(nomali, &state, intno), 258 "Failed to get interrupt state"); 259 260 return !!state; 261} 262 263void 264NoMaliGpu::gpuPanic(nomali_error_t err, const char *msg) 265{ 266 panic("%s: %s\n", msg, nomali_errstr(err)); 267} 268 269 270void 271NoMaliGpu::onInterrupt(nomali_int_t intno, bool set) 272{ 273 const auto it_int(interruptMap.find(intno)); 274 if (it_int == interruptMap.end()) 275 panic("Unhandled interrupt from NoMali: %i\n", intno); 276 277 DPRINTF(NoMali, "Interrupt %i->%i: %i\n", 278 intno, it_int->second, set); 279 280 assert(platform); 281 assert(platform->gic); 282 283 if (set) 284 platform->gic->sendInt(it_int->second); 285 else 286 platform->gic->clearInt(it_int->second); 287} 288 289void 290NoMaliGpu::onReset() 291{ 292 DPRINTF(NoMali, "Reset\n"); 293} 294 295void 296NoMaliGpu::setCallback(const nomali_callback_t &callback) 297{ 298 DPRINTF(NoMali, "Registering callback %i\n", 299 callback.type); 300 301 panicOnErr( 302 nomali_set_callback(nomali, &callback), 303 "Failed to register callback"); 304} 305 306void 307NoMaliGpu::_interrupt(nomali_handle_t h, void *usr, 308 nomali_int_t intno, int set) 309{ 310 NoMaliGpu *_this(static_cast<NoMaliGpu *>(usr)); 311 312 _this->onInterrupt(intno, !!set); 313} 314 315void 316NoMaliGpu::_reset(nomali_handle_t h, void *usr) 317{ 318 NoMaliGpu *_this(static_cast<NoMaliGpu *>(usr)); 319 320 _this->onReset(); 321} 322 323NoMaliGpu * 324NoMaliGpuParams::create() 325{ 326 return new NoMaliGpu(this); 327} 328