From 7fad9b1d00f3ee1488ba4038d1371f6ea219f8b7 Mon Sep 17 00:00:00 2001
From: Pablo Tello <pablo.tello@arm.com>
Date: Wed, 14 Mar 2018 17:55:27 +0000
Subject: COMPMID-1021: CPUInfo refactoring.

Removed CPUTarget in favor of the CPUModel type.
CPUInfo now holds a vector of N CPUs.
CPUInfo autoinitialise upon construction with 1 GENERIC CPU.
CPPScheduler fills CPUInfo's vector upon construction (runtime).
IScheduler has a single CPUInfo obj and ThreadInfo always gets a pointer to it (avoid copying the vector)

Change-Id: I30f293258c959c87f6bac5eac8b963beb6a4d365
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/124626
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
---
 src/core/CPP/CPPTypes.cpp | 115 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 src/core/CPP/CPPTypes.cpp

(limited to 'src/core/CPP/CPPTypes.cpp')

diff --git a/src/core/CPP/CPPTypes.cpp b/src/core/CPP/CPPTypes.cpp
new file mode 100644
index 0000000000..7459957f8f
--- /dev/null
+++ b/src/core/CPP/CPPTypes.cpp
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2018 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.
+ */
+
+#include "arm_compute/core/CPP/CPPTypes.h"
+
+#include "arm_compute/core/Error.h"
+
+#ifndef BARE_METAL
+#include <sched.h>
+#endif /* defined(BARE_METAL) */
+
+using namespace arm_compute;
+
+void CPUInfo::set_fp16(const bool fp16)
+{
+    _fp16 = fp16;
+}
+
+void CPUInfo::set_dotprod(const bool dotprod)
+{
+    _dotprod = dotprod;
+}
+
+void CPUInfo::set_cpu_model(unsigned int cpuid, CPUModel model)
+{
+    ARM_COMPUTE_ERROR_ON(cpuid >= _percpu.size());
+    if(_percpu.size() > cpuid)
+    {
+        _percpu[cpuid] = model;
+    }
+}
+
+bool CPUInfo::has_fp16() const
+{
+    return _fp16;
+}
+
+bool CPUInfo::has_dotprod() const
+{
+    return _dotprod;
+}
+
+CPUModel CPUInfo::get_cpu_model(unsigned int cpuid) const
+{
+    ARM_COMPUTE_ERROR_ON(cpuid >= _percpu.size());
+    if(cpuid < _percpu.size())
+    {
+        return _percpu[cpuid];
+    }
+    return CPUModel::GENERIC;
+}
+
+unsigned int CPUInfo::get_L1_cache_size() const
+{
+    return _L1_cache_size;
+}
+
+void CPUInfo::set_L1_cache_size(unsigned int size)
+{
+    _L1_cache_size = size;
+}
+
+unsigned int CPUInfo::get_L2_cache_size() const
+{
+    return _L2_cache_size;
+}
+
+void CPUInfo::set_L2_cache_size(unsigned int size)
+{
+    _L2_cache_size = size;
+}
+
+void CPUInfo::set_cpu_num(unsigned int cpu_count)
+{
+    _percpu.resize(cpu_count);
+}
+
+CPUInfo::CPUInfo()
+    : _percpu(1)
+{
+    // The core library knows nothing about the CPUs so we set only 1 CPU to be generic.
+    // The runtime NESCheduler will initialise this vector with the correct CPU models.
+    // See void detect_cpus_configuration(CPUInfo &cpuinfo) in CPPUtils.h
+    _percpu[0] = CPUModel::GENERIC;
+}
+
+CPUModel CPUInfo::get_cpu_model() const
+{
+#if defined(BARE_METAL) || (!defined(__arm__) && !defined(__aarch64__))
+    return get_cpu_model(0);
+#else  /* defined(BARE_METAL) || (!defined(__arm__) && !defined(__aarch64__)) */
+    return get_cpu_model(sched_getcpu());
+#endif /* defined(BARE_METAL) || (!defined(__arm__) && !defined(__aarch64__)) */
+}
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