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// Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#ifndef ROCFFT_DEVICE_PROPS_H
#define ROCFFT_DEVICE_PROPS_H
#include <cstdint>
#include <hip/hip_runtime_api.h>
#include <stdexcept>
// get device properties
static hipDeviceProp_t get_curr_device_prop()
{
hipDeviceProp_t prop;
int deviceId = 0;
if(hipGetDevice(&deviceId) != hipSuccess)
throw std::runtime_error("hipGetDevice failed.");
if(hipGetDeviceProperties(&prop, deviceId) != hipSuccess)
throw std::runtime_error("hipGetDeviceProperties failed for deviceId "
+ std::to_string(deviceId));
return prop;
}
// check that the given grid/block dims will fit into the limits in
// the device properties. throws std::runtime_error if the limits
// are exceeded.
static void launch_limits_check(const std::string& kernel_name,
const dim3 gridDim,
const dim3 blockDim,
const hipDeviceProp_t& deviceProp)
{
// Need lots of casting here because dim3 is unsigned but device
// props are signed. Cast direct comparisons to fix signedness
// issues. Promote types to 64-bit when multiplying to try to
// avoid overflow.
// Block limits along each dimension
if(blockDim.x > static_cast<uint32_t>(deviceProp.maxThreadsDim[0])
|| blockDim.y > static_cast<uint32_t>(deviceProp.maxThreadsDim[1])
|| blockDim.z > static_cast<uint32_t>(deviceProp.maxThreadsDim[2]))
throw std::runtime_error("max threads per dim exceeded: " + kernel_name);
// Total threads for the whole block
if(static_cast<uint64_t>(blockDim.x) * blockDim.y * blockDim.z
> static_cast<uint64_t>(deviceProp.maxThreadsPerBlock))
throw std::runtime_error("max threads per block exceeded: " + kernel_name);
// Grid dimension limits
if(gridDim.x > static_cast<uint32_t>(deviceProp.maxGridSize[0])
|| gridDim.y > static_cast<uint32_t>(deviceProp.maxGridSize[1])
|| gridDim.z > static_cast<uint32_t>(deviceProp.maxGridSize[2]))
throw std::runtime_error("max grid size exceeded: " + kernel_name);
}
#endif
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