1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (C) 2019 Intel Corporation <www.intel.com> 4 */ 5 6 #ifndef __SLIMBOOTLOADER_ARCH_H__ 7 #define __SLIMBOOTLOADER_ARCH_H__ 8 9 #include <asm/hob.h> 10 11 /** 12 * A GUID to get MemoryMap info hob which is provided by Slim Bootloader 13 */ 14 #define SBL_MEMORY_MAP_INFO_GUID \ 15 EFI_GUID(0xa1ff7424, 0x7a1a, 0x478e, \ 16 0xa9, 0xe4, 0x92, 0xf3, 0x57, 0xd1, 0x28, 0x32) 17 18 /** 19 * A GUID to get SerialPort info hob which is provided by Slim Bootloader 20 */ 21 #define SBL_SERIAL_PORT_INFO_GUID \ 22 EFI_GUID(0x6c6872fe, 0x56a9, 0x4403, \ 23 0xbb, 0x98, 0x95, 0x8d, 0x62, 0xde, 0x87, 0xf1) 24 25 /** 26 * A GUID to get boot performance info hob which is provided by Slim Bootloader 27 */ 28 #define SBL_PERFORMANCE_INFO_GUID \ 29 EFI_GUID(0x868204be, 0x23d0, 0x4ff9, \ 30 0xac, 0x34, 0xb9, 0x95, 0xac, 0x04, 0xb1, 0xb9) 31 32 /** 33 * A single entry of memory map information 34 * 35 * @addr: start address of a memory map entry 36 * @size: size of a memory map entry 37 * @type: usable:1, reserved:2, acpi:3, nvs:4, unusable:5 38 * @flag: only used in Slim Bootloader 39 * @rsvd: padding for alignment 40 */ 41 struct sbl_memory_map_entry { 42 u64 addr; 43 u64 size; 44 u8 type; 45 u8 flag; 46 u8 rsvd[6]; 47 }; 48 49 /** 50 * This includes all memory map entries which is sorted based on physical start 51 * address, from low to high, and carved out reserved, acpi nvs, acpi reclaim 52 * and usable memory. 53 * 54 * @rev : revision of memory_map_info structure. currently 1. 55 * @rsvd : padding for alignment 56 * @count: the number of memory map entries 57 * @entry: array of all memory map entries 58 */ 59 struct sbl_memory_map_info { 60 u8 rev; 61 u8 rsvd[3]; 62 u32 count; 63 struct sbl_memory_map_entry entry[0]; 64 }; 65 66 /** 67 * This includes serial port info which has already been initialized in previous 68 * Slim Bootloader stage. 69 * The Slim Bootloader initializes serial port regardless of debug/release build 70 * modes, and it passes the information to a payload thru hob. So, a payload can 71 * re-use the serial information without re-initializing serial port. 72 * 73 * @rev : revision of serial_port_info structure. currently 1. 74 * @rsvd : padding for alignment 75 * @type : port io: 1, mmio: 2 76 * @base : io base address. ex) 0x3f8, 0x80001000 77 * @baud : uart baud rate 78 * @stride: register stride in Bytes 79 * @clk : uart frequency in Hz 80 * @rsvd1 : reserved 81 */ 82 struct sbl_serial_port_info { 83 u8 rev; 84 u8 rsvd[3]; 85 u32 type; 86 u32 base; 87 u32 baud; 88 u32 stride; 89 u32 clk; 90 u32 rsvd1; 91 }; 92 93 /** 94 * This includes timestamp data which has been collected in Slim Bootloader 95 * stages from the reset vector. In addition, this has TSC frequency in KHz to 96 * calculate each timestamp. 97 * 98 * @rev : revision of performance_info structure. currently 1. 99 * @rsvd : padding for alignment 100 * @count : the number of collected timestamp data 101 * @flags : only used in Slim Bootloader 102 * @frequency: tsc frequency in KHz 103 * @timestamp: the array of timestamp data which has 64-bit tsc value 104 */ 105 struct sbl_performance_info { 106 u8 rev; 107 u8 rsvd[3]; 108 u16 count; 109 u16 flags; 110 u32 frequency; 111 u64 timestamp[0]; 112 }; 113 114 #endif /* __SLIMBOOTLOADER_ARCH_H__ */ 115