Subversion Repositories HelenOS-historic

Rev

Rev 197 | Rev 206 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 197 Rev 200
Line 30... Line 30...
30 
#define __amd64_ASM_H__
 30 
#define __amd64_ASM_H__
31 
 
 31 
 
32 
#include <arch/types.h>
 32 
#include <arch/types.h>
33 
#include <config.h>
 33 
#include <config.h>
34 
 
 34 
 
- 
 
 35 
 
35 
void asm_delay_loop(__u32 t);
 36 
void asm_delay_loop(__u32 t);
36 
 
 37 
 
37 
/* TODO: implement the real stuff */
 38 
/* TODO: implement the real stuff */
38 
static inline __address get_stack_base(void)
 39 
static inline __address get_stack_base(void)
39 
{
 40 
{
40 
    return NULL;
 41 
    return NULL;
41 
}
 42 
}
42 
 
 43 
 
43 
static inline void cpu_sleep(void) { __asm__("hlt"); };
 44 
static inline void cpu_sleep(void) { __asm__("hlt"); };
44 
 
 45 
 
- 
 
 46 
 
- 
 
 47 
static inline __u8 inb(__u16 port)
- 
 
 48 
{
- 
 
 49 
    __u8 out;
- 
 
 50 
 
- 
 
 51 
    asm (
- 
 
 52 
        "mov %0, %%dx;"
- 
 
 53 
        "inb %%dx,%%al;"
- 
 
 54 
        "mov %%al, %1;"
- 
 
 55 
        :"=m"(out)
- 
 
 56 
        :"m"(port)
- 
 
 57 
        :"dx","al"
- 
 
 58 
        );
- 
 
 59 
    return out;
- 
 
 60 
}
- 
 
 61 
 
- 
 
 62 
static inline __u8 outb(__u16 port,__u8 b)
- 
 
 63 
{
- 
 
 64 
    asm (
- 
 
 65 
        "mov %0,%%dx;"
- 
 
 66 
        "mov %1,%%al;"
- 
 
 67 
        "outb %%al,%%dx;"
- 
 
 68 
        :
- 
 
 69 
        :"m"( port), "m" (b)
- 
 
 70 
        :"dx","al"
- 
 
 71 
        );
- 
 
 72 
}
- 
 
 73 
 
- 
 
 74 
/** Set priority level low
- 
 
 75 
 *
- 
 
 76 
 * Enable interrupts and return previous
- 
 
 77 
 * value of EFLAGS.
- 
 
 78 
 */
- 
 
 79 
static inline pri_t cpu_priority_low(void) {
- 
 
 80 
    pri_t v;
- 
 
 81 
    __asm__ volatile (
- 
 
 82 
        "pushfq\n"
- 
 
 83 
        "popq %0\n"
- 
 
 84 
        "sti\n"
- 
 
 85 
        : "=r" (v)
- 
 
 86 
    );
- 
 
 87 
    return v;
- 
 
 88 
}
- 
 
 89 
 
- 
 
 90 
/** Set priority level high
- 
 
 91 
 *
- 
 
 92 
 * Disable interrupts and return previous
- 
 
 93 
 * value of EFLAGS.
- 
 
 94 
 */
- 
 
 95 
static inline pri_t cpu_priority_high(void) {
- 
 
 96 
    pri_t v;
- 
 
 97 
    __asm__ volatile (
- 
 
 98 
        "pushfq\n"
- 
 
 99 
        "popq %0\n"
- 
 
 100 
        "cli\n"
- 
 
 101 
        : "=r" (v)
- 
 
 102 
        );
- 
 
 103 
    return v;
- 
 
 104 
}
- 
 
 105 
 
- 
 
 106 
/** Restore priority level
- 
 
 107 
 *
- 
 
 108 
 * Restore EFLAGS.
- 
 
 109 
 */
- 
 
 110 
static inline void cpu_priority_restore(pri_t pri) {
- 
 
 111 
    __asm__ volatile (
- 
 
 112 
        "pushq %0\n"
- 
 
 113 
        "popfq\n"
- 
 
 114 
        : : "r" (pri)
- 
 
 115 
        );
- 
 
 116 
}
- 
 
 117 
 
- 
 
 118 
 
45 
#endif
 119 
#endif