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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_OS_RESUME 0x40
#define POST_RAM_FAILURE 0xea
#define POST_BIST_FAILURE 0xeb
#define POST_CAR_FAILURE 0xec
#define POST_RESUME_FAILURE 0xed
/* 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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