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/*
* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB, daniel@omicron.se
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_PROCESSOR_H_
#define __ASM_PROCESSOR_H_ 1
#define X86_GDT_ENTRY_SIZE 8
#define X86_GDT_ENTRY_NULL 0
#define X86_GDT_ENTRY_UNUSED 1
#define X86_GDT_ENTRY_32BIT_CS 2
#define X86_GDT_ENTRY_32BIT_DS 3
#define X86_GDT_ENTRY_32BIT_FS 4
#define X86_GDT_ENTRY_16BIT_CS 5
#define X86_GDT_ENTRY_16BIT_DS 6
#define X86_GDT_ENTRY_16BIT_FLAT_CS 7
#define X86_GDT_ENTRY_16BIT_FLAT_DS 8
#define X86_GDT_NUM_ENTRIES 9
#define X86_GDT_SIZE (X86_GDT_NUM_ENTRIES * X86_GDT_ENTRY_SIZE)
#ifndef __ASSEMBLY__
#define PORT_RESET 0xcf9
static inline __attribute__((always_inline)) void cpu_hlt(void)
{
asm("hlt");
}
static inline ulong cpu_get_sp(void)
{
ulong result;
asm volatile(
"mov %%esp, %%eax"
: "=a" (result));
return result;
}
#endif /* __ASSEMBLY__ */
#endif
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