| /* |
| * Copyright 2022 The Android Open Source Project |
| * |
| * 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 |
| * |
| * https://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. |
| */ |
| |
| .set .L_TT_TYPE_BLOCK, 0x1 |
| .set .L_TT_TYPE_PAGE, 0x3 |
| .set .L_TT_TYPE_TABLE, 0x3 |
| |
| /* Access flag. */ |
| .set .L_TT_AF, 0x1 << 10 |
| /* Not global. */ |
| .set .L_TT_NG, 0x1 << 11 |
| .set .L_TT_RO, 0x2 << 6 |
| .set .L_TT_XN, 0x3 << 53 |
| |
| .set .L_TT_MT_DEV, 0x0 << 2 // MAIR #0 (DEV_nGnRE) |
| .set .L_TT_MT_MEM, (0x1 << 2) | (0x3 << 8) // MAIR #1 (MEM_WBWA), inner shareable |
| |
| .set .L_BLOCK_RO, .L_TT_TYPE_BLOCK | .L_TT_MT_MEM | .L_TT_AF | .L_TT_RO | .L_TT_XN |
| .set .L_BLOCK_DEV, .L_TT_TYPE_BLOCK | .L_TT_MT_DEV | .L_TT_AF | .L_TT_XN |
| .set .L_BLOCK_MEM, .L_TT_TYPE_BLOCK | .L_TT_MT_MEM | .L_TT_AF | .L_TT_XN | .L_TT_NG |
| .set .L_BLOCK_MEM_XIP, .L_TT_TYPE_BLOCK | .L_TT_MT_MEM | .L_TT_AF | .L_TT_NG | .L_TT_RO |
| |
| .section ".rodata.idmap", "a", %progbits |
| .global idmap |
| .align 12 |
| idmap: |
| /* level 1 */ |
| .quad .L_BLOCK_DEV | 0x0 // 1 GB of device mappings |
| .quad .L_BLOCK_DEV | 0x40000000 // Another 1 GB of device mapppings |
| .quad .L_TT_TYPE_TABLE + 0f // up to 1 GB of DRAM |
| .fill 509, 8, 0x0 // 509 GB of remaining VA space |
| |
| /* level 2 */ |
| 0: .quad .L_BLOCK_RO | 0x80000000 // DT provided by VMM |
| .quad .L_BLOCK_MEM_XIP | 0x80200000 // 2 MB of DRAM containing image |
| .quad .L_BLOCK_MEM | 0x80400000 // 2 MB of writable DRAM |
| .fill 509, 8, 0x0 |
