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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/diag/attn/test/attntest.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* COPYRIGHT International Business Machines Corp. 2012,2014 */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/**
* @file attntest.C
*
* @brief HBATTN test utility function definitions.
*/
#include <arch/ppc.H>
#include <algorithm>
#include "attntest.H"
#include "../attntrace.H"
#include "../attntarget.H"
using namespace std;
using namespace PRDF;
using namespace TARGETING;
namespace ATTN
{
uint64_t randint(uint64_t i_min, uint64_t i_max)
{
static bool setup = false;
static uint64_t seed = 0;
if(!setup)
{
uint64_t hapSeed = generate_random();
if(!hapSeed)
{
ATTN_DBG("falling back to timebase seed for PRNG");
}
else
{
ATTN_DBG("hapseed: %d", hapSeed);
}
seed = hapSeed ? hapSeed : getTB() + 1;
setup = true;
}
uint64_t lo, hi;
seed = seed * seed;
lo = (seed & 0x0000ffffffff0000ull) >> 16;
hi = (seed & 0x000000000000ffffull) << 32;
hi |= (seed & 0xffff000000000000ull);
seed = (lo | hi) + 2;
static const uint64_t randMax = 0xfffffffffffffffe;
uint64_t min = i_min, max = i_max;
if(i_min > i_max)
{
swap(min, max);
}
if(max > randMax)
{
max = randMax;
}
return ((lo | hi) % (max +1 - min)) + min;
}
ATTENTION_VALUE_TYPE getRandomAttentionType()
{
ATTENTION_VALUE_TYPE a;
switch (randint(1, 3))
{
case 2:
a = RECOVERABLE;
break;
case 3:
default:
a = SPECIAL;
break;
};
return a;
}
}
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