source: trunk/hal/x86_64/core/hal_internal.h @ 339

Last change on this file since 339 was 339, checked in by max@…, 4 years ago

Add support for context switch - not tested yet, due to some other bugs in
the mapper. This cswitch is similar to that of TSAR.

File size: 2.6 KB
Line 
1/*
2 * hal_internal.h - x86-specific function definitions
3 *
4 * Copyright (c) 2017 Maxime Villard
5 *
6 * This file is part of ALMOS-MKH.
7 *
8 * ALMOS-MKH is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2.0 of the License.
11 *
12 * ALMOS-MKH is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with ALMOS-MKH; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#include <memcpy.h>
23
24#define offsetof(type, member) __builtin_offsetof(type, member)
25#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
26#define rounddown(x,y) (((x)/(y))*(y))
27
28#define XASSERT(a)      \
29        if (!(a)) { \
30                x86_panic((char *)__func__); \
31        }
32
33/* hal_init.c */
34void cpu_activate(uint32_t gid);
35int idt_slot_alloc();
36void idt_slot_free(int slot);
37
38/* hal_cpu.S */
39void invlpg(vaddr_t va);
40void sti();
41void cli();
42uint64_t rdtsc();
43uint8_t in8(uint32_t port);
44uint16_t in16(uint32_t port);
45void out8(uint32_t port, uint8_t val);
46void out16(uint32_t port, uint16_t val);
47uint64_t rdmsr(uint32_t);
48void wrmsr(uint32_t, uint64_t);
49void mfence();
50uint64_t rcr0(void);
51vaddr_t rcr2(void);
52uint64_t rcr3(void);
53uint64_t rcr4(void);
54void lcr4(uint64_t);
55void cpuid(uint32_t eax, uint32_t ecx, uint32_t *desc);
56void tlbflushg();
57void tlbflush();
58void clts();
59void stts();
60void pause();
61void wbinvd();
62
63void cpu_context_switch(void *oldctx, void *newctx);
64
65uint32_t atomic_cas_32(volatile uint32_t *ptr, uint32_t exp, uint32_t new);
66uint32_t atomic_add_32(volatile uint32_t *ptr, int32_t incr);
67uint32_t atomic_and_32(volatile uint32_t *ptr, uint32_t mask);
68uint32_t atomic_or_32(volatile uint32_t *ptr, uint32_t mask);
69
70/* hal_gpt.c */
71paddr_t hal_gpt_bootstrap_palloc(size_t npages);
72vaddr_t hal_gpt_bootstrap_valloc(size_t npages);
73void hal_gpt_bootstrap_reset();
74size_t hal_gpt_bootstrap_uniformize();
75
76void hal_gpt_enter(vaddr_t va, paddr_t pa, pt_entry_t flags);
77void hal_gpt_enter_range(vaddr_t va, paddr_t pa, size_t n);
78void hal_gpt_leave(vaddr_t va);
79void hal_gpt_leave_range(vaddr_t va, size_t n);
80void hal_gpt_maptree_area(vaddr_t va_start, vaddr_t va_end);
81void hal_gpt_init(paddr_t firstpa);
82
83/* hal_special.c */
84
85/* x86_printf.c */
86void x86_lock();
87void x86_unlock();
88
89void x86_panic(char *msg);
90void x86_putc(char c);
91void x86_printf(char *s, ...);
92
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