| Daniel Boulby | f3da591 | 2022-04-01 12:31:52 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2022, Arm Limited. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #ifndef SP_DEF_H |
| 8 | #define SP_DEF_H |
| 9 | |
| 10 | #include <utils_def.h> |
| 11 | #include <sp_platform_def.h> |
| 12 | |
| 13 | /* |
| 14 | * Layout of the Secure Partition image. |
| 15 | */ |
| 16 | |
| 17 | /* Up to 2 MiB at an arbitrary address that doesn't overlap the devices. */ |
| 18 | #define SP_IMAGE_BASE ULL(0x1000) |
| 19 | #define SP_IMAGE_SIZE ULL(0x200000) |
| 20 | |
| 21 | /* Memory reserved for stacks */ |
| 22 | #define SP_STACKS_SIZE ULL(0x1000) |
| 23 | |
| 24 | /* |
| 25 | * RX/TX buffer used by VM's in SPM for memory sharing |
| 26 | * Each VM allocated 2 pages, one for RX and one for TX buffer. |
| 27 | */ |
| 28 | #define SP_RX_BASE PLAT_SP_RX_BASE |
| 29 | #define SP_TX_BASE SP_RX_BASE + PAGE_SIZE |
| 30 | #define SP_RX_TX_SIZE PAGE_SIZE * 2 |
| 31 | |
| 32 | /* |
| 33 | * RX/TX buffer helpers. |
| 34 | */ |
| 35 | #define get_sp_rx_start(sp_id) (SP_RX_BASE \ |
| 36 | + (((sp_id & 0x7FFFU) - 1U) * SP_RX_TX_SIZE)) |
| 37 | #define get_sp_rx_end(sp_id) (SP_RX_BASE \ |
| 38 | + (((sp_id & 0x7FFFU) - 1U) * SP_RX_TX_SIZE) \ |
| 39 | + PAGE_SIZE) |
| 40 | #define get_sp_tx_start(sp_id) (SP_TX_BASE + \ |
| 41 | (((sp_id & 0x7FFFU) - 1U) * SP_RX_TX_SIZE)) |
| 42 | #define get_sp_tx_end(sp_id) (SP_TX_BASE \ |
| 43 | + (((sp_id & 0x7FFFU) - 1U) * SP_RX_TX_SIZE) \ |
| 44 | + PAGE_SIZE) |
| 45 | |
| 46 | #endif /* SP_DEF_H */ |