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51 | * Halt the current CPU until interrupt event. |
51 | * Halt the current CPU until interrupt event. |
52 | */ |
52 | */ |
53 | static inline void cpu_halt(void) { __asm__("hlt\n"); }; |
53 | static inline void cpu_halt(void) { __asm__("hlt\n"); }; |
54 | static inline void cpu_sleep(void) { __asm__("hlt\n"); }; |
54 | static inline void cpu_sleep(void) { __asm__("hlt\n"); }; |
55 | 55 | ||
56 | /** Read CR2 |
56 | #define GEN_READ_REG(reg) static inline __native read_ ##reg (void) \ |
57 | * |
57 | { \ |
58 | * Return value in CR2 |
58 | __native res; \ |
59 | * |
- | |
- | 59 | __asm__ volatile ("movl %%" #reg ", %0" : "=r" (res) ); \ |
|
60 | * @return Value read. |
60 | return res; \ |
61 | */ |
61 | } |
62 | static inline __u32 read_cr2(void) { __u32 v; __asm__ volatile ("movl %%cr2,%0\n" : "=r" (v)); return v; } |
- | |
63 | 62 | ||
64 | /** Write CR3 |
- | |
65 | * |
- | |
66 | * Write value to CR3. |
63 | #define GEN_WRITE_REG(reg) static inline void write_ ##reg (__native regn) \ |
67 | * |
64 | { \ |
68 | * @param v Value to be written. |
65 | __asm__ volatile ("movl %0, %%" #reg : : "r" (regn)); \ |
69 | */ |
66 | } |
70 | static inline void write_cr3(__u32 v) { __asm__ volatile ("movl %0,%%cr3\n" : : "r" (v)); } |
- | |
71 | 67 | ||
- | 68 | GEN_READ_REG(cr0); |
|
- | 69 | GEN_READ_REG(cr2); |
|
72 | /** Read CR3 |
70 | GEN_READ_REG(cr3); |
- | 71 | GEN_WRITE_REG(cr3); |
|
73 | * |
72 | |
- | 73 | GEN_READ_REG(dr0); |
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- | 74 | GEN_READ_REG(dr1); |
|
- | 75 | GEN_READ_REG(dr2); |
|
- | 76 | GEN_READ_REG(dr3); |
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- | 77 | GEN_READ_REG(dr6); |
|
74 | * Return value in CR3 |
78 | GEN_READ_REG(dr7); |
75 | * |
79 | |
- | 80 | GEN_WRITE_REG(dr0); |
|
76 | * @return Value read. |
81 | GEN_WRITE_REG(dr1); |
77 | */ |
82 | GEN_WRITE_REG(dr2); |
78 | static inline __u32 read_cr3(void) { __u32 v; __asm__ volatile ("movl %%cr3,%0\n" : "=r" (v)); return v; } |
83 | GEN_WRITE_REG(dr3); |
- | 84 | GEN_WRITE_REG(dr6); |
|
- | 85 | GEN_WRITE_REG(dr7); |
|
79 | 86 | ||
80 | /** Byte to port |
87 | /** Byte to port |
81 | * |
88 | * |
82 | * Output byte to port |
89 | * Output byte to port |
83 | * |
90 | * |