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| 1 | jermar | 1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 11 | jermar | 29 | #ifndef __ia32_ASM_H__ |
| 30 | #define __ia32_ASM_H__ |
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| 1 | jermar | 31 | |
| 32 | #include <arch/types.h> |
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| 33 | #include <typedefs.h> |
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| 34 | #include <mm/page.h> |
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| 35 | #include <synch/spinlock.h> |
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| 36 | |||
| 37 | extern __u32 interrupt_handler_size; |
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| 38 | |||
| 39 | extern void paging_on(void); |
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| 40 | extern __address cpu_read_dba(void); |
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| 41 | extern void cpu_write_dba(__address dba); |
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| 42 | |||
| 43 | extern __address cpu_read_cr2(void); |
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| 44 | |||
| 45 | extern void interrupt_handlers(void); |
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| 46 | |||
| 47 | extern __u8 inb(int port); |
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| 48 | extern __u16 inw(int port); |
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| 49 | extern __u32 inl(int port); |
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| 50 | |||
| 51 | extern void outb(int port, __u8 b); |
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| 52 | extern void outw(int port, __u16 w); |
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| 53 | extern void outl(int port, __u32 l); |
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| 54 | |||
| 55 | extern void enable_l_apic_in_msr(void); |
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| 56 | |||
| 57 | extern void halt_cpu(void); |
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| 58 | extern void cpu_sleep(void); |
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| 59 | |||
| 38 | jermar | 60 | static inline void write_dr0(__u32 v); |
| 61 | static inline __u32 read_dr0(void); |
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| 27 | jermar | 62 | |
| 38 | jermar | 63 | inline void write_dr0(__u32 v) { __asm__ volatile ("movl %0,%%dr0\n" : : "r" (v)); } |
| 64 | inline __u32 read_dr0(void) { __u32 v; __asm__ volatile ("movl %%dr0,%0" : "=r" (v)); return v; } |
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| 65 | |||
| 1 | jermar | 66 | #endif |