llvm/lib/Target/R600/AMDIL7XXDevice.cpp
Tom Stellard f98f2ce29e Add R600 backend
A new backend supporting AMD GPUs: Radeon HD2XXX - HD7XXX

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169915 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-11 21:25:42 +00:00

116 lines
2.7 KiB
C++

//===-- AMDIL7XXDevice.cpp - Device Info for 7XX GPUs ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
// \file
//==-----------------------------------------------------------------------===//
#include "AMDIL7XXDevice.h"
#include "AMDGPUSubtarget.h"
#include "AMDILDevice.h"
using namespace llvm;
AMDGPU7XXDevice::AMDGPU7XXDevice(AMDGPUSubtarget *ST) : AMDGPUDevice(ST) {
setCaps();
std::string name = mSTM->getDeviceName();
if (name == "rv710") {
DeviceFlag = OCL_DEVICE_RV710;
} else if (name == "rv730") {
DeviceFlag = OCL_DEVICE_RV730;
} else {
DeviceFlag = OCL_DEVICE_RV770;
}
}
AMDGPU7XXDevice::~AMDGPU7XXDevice() {
}
void AMDGPU7XXDevice::setCaps() {
mSWBits.set(AMDGPUDeviceInfo::LocalMem);
}
size_t AMDGPU7XXDevice::getMaxLDSSize() const {
if (usesHardware(AMDGPUDeviceInfo::LocalMem)) {
return MAX_LDS_SIZE_700;
}
return 0;
}
size_t AMDGPU7XXDevice::getWavefrontSize() const {
return AMDGPUDevice::HalfWavefrontSize;
}
uint32_t AMDGPU7XXDevice::getGeneration() const {
return AMDGPUDeviceInfo::HD4XXX;
}
uint32_t AMDGPU7XXDevice::getResourceID(uint32_t DeviceID) const {
switch (DeviceID) {
default:
assert(0 && "ID type passed in is unknown!");
break;
case GLOBAL_ID:
case CONSTANT_ID:
case RAW_UAV_ID:
case ARENA_UAV_ID:
break;
case LDS_ID:
if (usesHardware(AMDGPUDeviceInfo::LocalMem)) {
return DEFAULT_LDS_ID;
}
break;
case SCRATCH_ID:
if (usesHardware(AMDGPUDeviceInfo::PrivateMem)) {
return DEFAULT_SCRATCH_ID;
}
break;
case GDS_ID:
assert(0 && "GDS UAV ID is not supported on this chip");
if (usesHardware(AMDGPUDeviceInfo::RegionMem)) {
return DEFAULT_GDS_ID;
}
break;
};
return 0;
}
uint32_t AMDGPU7XXDevice::getMaxNumUAVs() const {
return 1;
}
AMDGPU770Device::AMDGPU770Device(AMDGPUSubtarget *ST): AMDGPU7XXDevice(ST) {
setCaps();
}
AMDGPU770Device::~AMDGPU770Device() {
}
void AMDGPU770Device::setCaps() {
if (mSTM->isOverride(AMDGPUDeviceInfo::DoubleOps)) {
mSWBits.set(AMDGPUDeviceInfo::FMA);
mHWBits.set(AMDGPUDeviceInfo::DoubleOps);
}
mSWBits.set(AMDGPUDeviceInfo::BarrierDetect);
mHWBits.reset(AMDGPUDeviceInfo::LongOps);
mSWBits.set(AMDGPUDeviceInfo::LongOps);
mSWBits.set(AMDGPUDeviceInfo::LocalMem);
}
size_t AMDGPU770Device::getWavefrontSize() const {
return AMDGPUDevice::WavefrontSize;
}
AMDGPU710Device::AMDGPU710Device(AMDGPUSubtarget *ST) : AMDGPU7XXDevice(ST) {
}
AMDGPU710Device::~AMDGPU710Device() {
}
size_t AMDGPU710Device::getWavefrontSize() const {
return AMDGPUDevice::QuarterWavefrontSize;
}