1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (c) 2014 Google, Inc 4 */ 5 6 #ifndef _post_h 7 #define _post_h 8 9 /* port to use for post codes */ 10 #define POST_PORT 0x80 11 12 /* post codes which represent various stages of init */ 13 #define POST_START 0x1e 14 #define POST_CAR_START 0x1f 15 #define POST_CAR_SIPI 0x20 16 #define POST_CAR_MTRR 0x21 17 #define POST_CAR_UNCACHEABLE 0x22 18 #define POST_CAR_BASE_ADDRESS 0x23 19 #define POST_CAR_MASK 0x24 20 #define POST_CAR_FILL 0x25 21 #define POST_CAR_ROM_CACHE 0x26 22 #define POST_CAR_MRC_CACHE 0x27 23 #define POST_CAR_CPU_CACHE 0x28 24 #define POST_START_STACK 0x29 25 #define POST_START_DONE 0x2a 26 #define POST_CPU_INIT 0x2b 27 #define POST_EARLY_INIT 0x2c 28 #define POST_CPU_INFO 0x2d 29 #define POST_PRE_MRC 0x2e 30 #define POST_MRC 0x2f 31 #define POST_DRAM 0x30 32 #define POST_LAPIC 0x31 33 #define POST_OS_RESUME 0x40 34 35 #define POST_RAM_FAILURE 0xea 36 #define POST_BIST_FAILURE 0xeb 37 #define POST_CAR_FAILURE 0xec 38 #define POST_RESUME_FAILURE 0xed 39 40 /* Output a post code using al - value must be 0 to 0xff */ 41 #ifdef __ASSEMBLY__ 42 #define post_code(value) \ 43 movb $value, %al; \ 44 outb %al, $POST_PORT 45 #else 46 #include <asm/io.h> 47 48 static inline void post_code(int code) 49 { 50 outb(code, POST_PORT); 51 } 52 #endif 53 54 #endif 55
