188 lines
7.6 KiB
C++
188 lines
7.6 KiB
C++
/*
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* Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_GC_G1_G1ALLOCATOR_INLINE_HPP
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#define SHARE_GC_G1_G1ALLOCATOR_INLINE_HPP
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#include "gc/g1/g1Allocator.hpp"
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#include "gc/g1/g1AllocRegion.inline.hpp"
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#include "gc/shared/plab.inline.hpp"
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#include "memory/universe.hpp"
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inline uint G1Allocator::current_node_index() const {
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return _numa->index_of_current_thread();
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}
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inline MutatorAllocRegion* G1Allocator::mutator_alloc_region(uint node_index) {
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assert(node_index < _num_alloc_regions, "Invalid index: %u", node_index);
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return &_mutator_alloc_regions[node_index];
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}
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inline SurvivorGCAllocRegion* G1Allocator::survivor_gc_alloc_region(uint node_index) {
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assert(node_index < _num_alloc_regions, "Invalid index: %u", node_index);
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return &_survivor_gc_alloc_regions[node_index];
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}
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inline OldGCAllocRegion* G1Allocator::old_gc_alloc_region() {
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return &_old_gc_alloc_region;
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}
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inline HeapWord* G1Allocator::attempt_allocation(size_t min_word_size,
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size_t desired_word_size,
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size_t* actual_word_size) {
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uint node_index = current_node_index();
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HeapWord* result = mutator_alloc_region(node_index)->attempt_retained_allocation(min_word_size, desired_word_size, actual_word_size);
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if (result != NULL) {
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return result;
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}
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return mutator_alloc_region(node_index)->attempt_allocation(min_word_size, desired_word_size, actual_word_size);
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}
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inline HeapWord* G1Allocator::attempt_allocation_locked(size_t word_size) {
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uint node_index = current_node_index();
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HeapWord* result = mutator_alloc_region(node_index)->attempt_allocation_locked(word_size);
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assert(result != NULL || mutator_alloc_region(node_index)->get() == NULL,
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"Must not have a mutator alloc region if there is no memory, but is " PTR_FORMAT, p2i(mutator_alloc_region(node_index)->get()));
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return result;
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}
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inline HeapWord* G1Allocator::attempt_allocation_force(size_t word_size) {
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uint node_index = current_node_index();
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return mutator_alloc_region(node_index)->attempt_allocation_force(word_size);
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}
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inline PLAB* G1PLABAllocator::alloc_buffer(G1HeapRegionAttr dest, uint node_index) const {
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assert(dest.is_valid(),
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"Allocation buffer index out of bounds: %s", dest.get_type_str());
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assert(_alloc_buffers[dest.type()] != NULL,
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"Allocation buffer is NULL: %s", dest.get_type_str());
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return alloc_buffer(dest.type(), node_index);
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}
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inline PLAB* G1PLABAllocator::alloc_buffer(region_type_t dest, uint node_index) const {
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assert(dest < G1HeapRegionAttr::Num,
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"Allocation buffer index out of bounds: %u", dest);
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if (dest == G1HeapRegionAttr::Young) {
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assert(node_index < alloc_buffers_length(dest),
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"Allocation buffer index out of bounds: %u, %u", dest, node_index);
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return _alloc_buffers[dest][node_index];
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} else {
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return _alloc_buffers[dest][0];
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}
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}
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inline uint G1PLABAllocator::alloc_buffers_length(region_type_t dest) const {
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if (dest == G1HeapRegionAttr::Young) {
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return _allocator->num_nodes();
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} else {
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return 1;
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}
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}
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inline HeapWord* G1PLABAllocator::plab_allocate(G1HeapRegionAttr dest,
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size_t word_sz,
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uint node_index) {
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PLAB* buffer = alloc_buffer(dest, node_index);
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if (_survivor_alignment_bytes == 0 || !dest.is_young()) {
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return buffer->allocate(word_sz);
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} else {
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return buffer->allocate_aligned(word_sz, _survivor_alignment_bytes);
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}
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}
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inline HeapWord* G1PLABAllocator::allocate(G1HeapRegionAttr dest,
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size_t word_sz,
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bool* refill_failed,
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uint node_index) {
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HeapWord* const obj = plab_allocate(dest, word_sz, node_index);
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if (obj != NULL) {
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return obj;
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}
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return allocate_direct_or_new_plab(dest, word_sz, refill_failed, node_index);
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}
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// Create the maps which is used to identify archive objects.
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inline void G1ArchiveAllocator::enable_archive_object_check() {
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if (_archive_check_enabled) {
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return;
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}
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_archive_check_enabled = true;
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size_t length = G1CollectedHeap::heap()->max_reserved_capacity();
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_archive_region_map.initialize(G1CollectedHeap::heap()->base(),
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G1CollectedHeap::heap()->base() + length,
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HeapRegion::GrainBytes);
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}
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// Set the regions containing the specified address range as archive.
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inline void G1ArchiveAllocator::set_range_archive(MemRegion range, bool open) {
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assert(_archive_check_enabled, "archive range check not enabled");
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log_info(gc, cds)("Mark %s archive regions in map: [" PTR_FORMAT ", " PTR_FORMAT "]",
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open ? "open" : "closed",
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p2i(range.start()),
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p2i(range.last()));
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uint8_t const value = open ? G1ArchiveRegionMap::OpenArchive : G1ArchiveRegionMap::ClosedArchive;
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_archive_region_map.set_by_address(range, value);
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}
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// Clear the archive regions map containing the specified address range.
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inline void G1ArchiveAllocator::clear_range_archive(MemRegion range) {
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assert(_archive_check_enabled, "archive range check not enabled");
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log_info(gc, cds)("Clear archive regions in map: [" PTR_FORMAT ", " PTR_FORMAT "]",
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p2i(range.start()),
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p2i(range.last()));
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_archive_region_map.set_by_address(range, G1ArchiveRegionMap::NoArchive);
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}
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// Check if an object is in a closed archive region using the _archive_region_map.
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inline bool G1ArchiveAllocator::in_closed_archive_range(oop object) {
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return _archive_region_map.get_by_address(cast_from_oop<HeapWord*>(object)) == G1ArchiveRegionMap::ClosedArchive;
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}
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inline bool G1ArchiveAllocator::in_open_archive_range(oop object) {
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return _archive_region_map.get_by_address(cast_from_oop<HeapWord*>(object)) == G1ArchiveRegionMap::OpenArchive;
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}
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// Check if archive object checking is enabled, to avoid calling in_open/closed_archive_range
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// unnecessarily.
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inline bool G1ArchiveAllocator::archive_check_enabled() {
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return _archive_check_enabled;
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}
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inline bool G1ArchiveAllocator::is_closed_archive_object(oop object) {
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return (archive_check_enabled() && in_closed_archive_range(object));
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}
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inline bool G1ArchiveAllocator::is_open_archive_object(oop object) {
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return (archive_check_enabled() && in_open_archive_range(object));
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}
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inline bool G1ArchiveAllocator::is_archived_object(oop object) {
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return archive_check_enabled() &&
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(_archive_region_map.get_by_address(cast_from_oop<HeapWord*>(object)) != G1ArchiveRegionMap::NoArchive);
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}
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#endif // SHARE_GC_G1_G1ALLOCATOR_INLINE_HPP
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