/*
 * Copyright (c) 2020, 2025, Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2020, 2023 SAP SE. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#include "logging/log.hpp"
#include "logging/logStream.hpp"
#include "memory/metaspace/metaspaceSettings.hpp"
#include "runtime/globals.hpp"
#include "runtime/java.hpp"
#include "runtime/os.hpp"
#include "utilities/debug.hpp"
#include "utilities/globalDefinitions.hpp"
#include "utilities/powerOfTwo.hpp"

namespace metaspace {

void Settings::ergo_initialize() {

  // Granules must be a multiple of page size, and a power-2-value.
  assert(_commit_granule_bytes >= os::vm_page_size() &&
         is_aligned(_commit_granule_bytes, os::vm_page_size()),
         "Granule size must be a page-size-aligned power-of-2 value");
  assert(commit_granule_words() <= chunklevel::MAX_CHUNK_WORD_SIZE, "Too large granule size");

  LogStream ls(Log(metaspace)::info());
  Settings::print_on(&ls);
}

void Settings::print_on(outputStream* st) {
  st->print_cr(" - commit_granule_bytes: %zu.", commit_granule_bytes());
  st->print_cr(" - commit_granule_words: %zu.", commit_granule_words());
  st->print_cr(" - virtual_space_node_default_size: %zu.", virtual_space_node_default_word_size());
  st->print_cr(" - enlarge_chunks_in_place: %d.", (int)enlarge_chunks_in_place());
}

} // namespace metaspace