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| Rev 2411 | Rev 2464 | ||
|---|---|---|---|
| Line 44... | Line 44... | ||
| 44 | /** No such instruction on ARM to sleep CPU. */ |
44 | /** No such instruction on ARM to sleep CPU. */ |
| 45 | static inline void cpu_sleep(void) |
45 | static inline void cpu_sleep(void) |
| 46 | { |
46 | { |
| 47 | } |
47 | } |
| 48 | 48 | ||
| 49 | - | ||
| 50 | /** Return base address of current stack. |
49 | /** Return base address of current stack. |
| 51 | * |
50 | * |
| 52 | * Return the base address of the current stack. |
51 | * Return the base address of the current stack. |
| 53 | * The stack is assumed to be STACK_SIZE bytes long. |
52 | * The stack is assumed to be STACK_SIZE bytes long. |
| 54 | * The stack must start on page boundary. |
53 | * The stack must start on page boundary. |
| Line 57... | Line 56... | ||
| 57 | { |
56 | { |
| 58 | uintptr_t v; |
57 | uintptr_t v; |
| 59 | asm volatile ( |
58 | asm volatile ( |
| 60 | "and %0, sp, %1\n" |
59 | "and %0, sp, %1\n" |
| 61 | : "=r" (v) |
60 | : "=r" (v) |
| 62 | : "r" (~(STACK_SIZE-1)) |
61 | : "r" (~(STACK_SIZE - 1)) |
| 63 | ); |
62 | ); |
| 64 | return v; |
63 | return v; |
| 65 | } |
64 | } |
| 66 | 65 | ||
| 67 | - | ||
| 68 | extern void cpu_halt(void); |
66 | extern void cpu_halt(void); |
| 69 | extern void asm_delay_loop(uint32_t t); |
67 | extern void asm_delay_loop(uint32_t t); |
| 70 | extern void userspace_asm(uintptr_t ustack, uintptr_t uspace_uarg, uintptr_t entry); |
68 | extern void userspace_asm(uintptr_t ustack, uintptr_t uspace_uarg, |
| 71 | - | ||
| - | 69 | uintptr_t entry); |
|
| 72 | 70 | ||
| 73 | #endif |
71 | #endif |
| 74 | 72 | ||
| 75 | /** @} |
73 | /** @} |
| 76 | */ |
74 | */ |