1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <sys/types.h> 20 #include <unistd.h> 21 22 #include <meminfo/androidprocheaps.h> 23 #include <meminfo/meminfo.h> 24 #include <meminfo/pageacct.h> 25 #include <meminfo/procmeminfo.h> 26 #include <meminfo/sysmeminfo.h> 27 28 #define _BITS(x, offset, bits) (((x) >> (offset)) & ((1LL << (bits)) - 1)) 29 30 // Macros to do per-page pagemap data manipulation 31 #define PAGE_PRESENT(x) (_BITS(x, 63, 1)) 32 #define PAGE_SWAPPED(x) (_BITS(x, 62, 1)) 33 #define PAGE_SHIFT(x) (_BITS(x, 55, 6)) 34 #define PAGE_PFN(x) (_BITS(x, 0, 55)) 35 #define PAGE_SWAP_OFFSET(x) (_BITS(x, 5, 50)) 36 #define PAGE_SWAP_TYPE(x) (_BITS(x, 0, 5)) 37 38 // Macros to do per-page kpageflags data manipulation 39 #define KPAGEFLAG_THP(x) (_BITS(x, 22, 1)) 40