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- /*
- * Copyright (c) 2014 Google, Inc
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
- #ifndef _post_h
- #define _post_h
- /* port to use for post codes */
- #define POST_PORT 0x80
- /* post codes which represent various stages of init */
- #define POST_START 0x1e
- #define POST_CAR_START 0x1f
- #define POST_CAR_SIPI 0x20
- #define POST_CAR_MTRR 0x21
- #define POST_CAR_UNCACHEABLE 0x22
- #define POST_CAR_BASE_ADDRESS 0x23
- #define POST_CAR_MASK 0x24
- #define POST_CAR_FILL 0x25
- #define POST_CAR_ROM_CACHE 0x26
- #define POST_CAR_MRC_CACHE 0x27
- #define POST_CAR_CPU_CACHE 0x28
- #define POST_START_STACK 0x29
- #define POST_START_DONE 0x2a
- #define POST_CPU_INIT 0x2b
- #define POST_EARLY_INIT 0x2c
- #define POST_CPU_INFO 0x2d
- #define POST_PRE_MRC 0x2e
- #define POST_MRC 0x2f
- #define POST_DRAM 0x30
- #define POST_LAPIC 0x31
- #define POST_RAM_FAILURE 0xea
- #define POST_BIST_FAILURE 0xeb
- #define POST_CAR_FAILURE 0xec
- /* Output a post code using al - value must be 0 to 0xff */
- #ifdef __ASSEMBLY__
- #define post_code(value) \
- movb $value, %al; \
- outb %al, $POST_PORT
- #else
- #include <asm/io.h>
- static inline void post_code(int code)
- {
- outb(code, POST_PORT);
- }
- #endif
- #endif
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