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/*
* Copyright (c) 2017-2021 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
* 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 ARM_COMPUTE_CPP_TYPES_H
#define ARM_COMPUTE_CPP_TYPES_H
#include "arm_compute/core/Error.h"
#include <memory>
namespace arm_compute
{
#define ARM_COMPUTE_CPU_MODEL_LIST \
X(GENERIC) \
X(GENERIC_FP16) \
X(GENERIC_FP16_DOT) \
X(A35) \
X(A53) \
X(A55r0) \
X(A55r1) \
X(A73) \
X(KLEIN) \
X(X1)
/** CPU models types
*
* @note We only need to detect CPUs we have microarchitecture-specific code for.
* @note Architecture features are detected via HWCAPs.
*/
enum class CPUModel
{
#define X(model) model,
ARM_COMPUTE_CPU_MODEL_LIST
#undef X
};
class CPUInfo final
{
public:
/** Constructor */
CPUInfo();
~CPUInfo();
/** Disable copy constructor and assignment operator to avoid copying the vector of CPUs each time
* CPUInfo is initialized once in the IScheduler and ThreadInfo will get a pointer to it.
*/
CPUInfo &operator=(const CPUInfo &cpuinfo) = delete;
CPUInfo(const CPUInfo &cpuinfo) = delete;
CPUInfo &operator=(CPUInfo &&cpuinfo) = default;
CPUInfo(CPUInfo &&cpuinfo) = default;
/** Checks if the cpu model supports fp16.
*
* @return true of the cpu supports fp16, false otherwise
*/
bool has_fp16() const;
/** Checks if the cpu model supports bf16.
*
* @return true of the cpu supports bf16, false otherwise
*/
bool has_bf16() const;
/** Checks if the cpu model supports dot product.
*
* @return true of the cpu supports dot product, false otherwise
*/
bool has_dotprod() const;
/** Checks if the cpu model supports sve.
*
* @return true of the cpu supports sve, false otherwise
*/
bool has_sve() const;
/** Gets the cpu model for a given cpuid.
*
* @param[in] cpuid the id of the cpu core to be retrieved,
*
* @return the @ref CPUModel of the cpuid queiried.
*/
CPUModel get_cpu_model(unsigned int cpuid) const;
/** Gets the current thread's cpu model
*
* @return Current thread's @ref CPUModel
*/
CPUModel get_cpu_model() const;
/** Gets the L1 cache size
*
* @return the size of the L1 cache
*/
unsigned int get_L1_cache_size() const;
/** Gets the L2 cache size
*
* @return the size of the L1 cache
*/
unsigned int get_L2_cache_size() const;
/** Set fp16 support
*
* @param[in] fp16 whether the cpu supports fp16.
*/
void set_fp16(const bool fp16);
/** Set dot product support
*
* @param[in] dotprod whether the cpu supports dot product.
*/
void set_dotprod(const bool dotprod);
/** Return the maximum number of CPUs present
*
* @return Number of CPUs
*/
unsigned int get_cpu_num() const;
private:
struct Impl;
std::unique_ptr<Impl> _impl;
};
/** Information about executing thread and CPU. */
struct ThreadInfo
{
int thread_id{ 0 };
int num_threads{ 1 };
const CPUInfo *cpu_info{ nullptr };
};
} // namespace arm_compute
#endif /* ARM_COMPUTE_CPP_TYPES_H */
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