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1 | /* |
1 | /* |
2 | * Copyright (c) 2003-2004 Jakub Jermar |
2 | * Copyright (c) 2007 Michal Kebrt |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
Line 27... | Line 27... | ||
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup arm32 |
29 | /** @addtogroup arm32 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
- | 33 | * @brief Declarations of functions implemented in assembly. |
|
33 | */ |
34 | */ |
34 | 35 | ||
35 | #ifndef KERN_arm32_ASM_H_ |
36 | #ifndef KERN_arm32_ASM_H_ |
36 | #define KERN_arm32_ASM_H_ |
37 | #define KERN_arm32_ASM_H_ |
37 | 38 | ||
38 | #include <arch/types.h> |
39 | #include <arch/types.h> |
39 | #include <arch/stack.h> |
40 | #include <arch/stack.h> |
40 | #include <config.h> |
41 | #include <config.h> |
- | 42 | #include <arch/interrupt.h> |
|
41 | 43 | ||
42 | - | ||
- | 44 | /** No such instruction on ARM to sleep CPU. */ |
|
43 | static inline void cpu_sleep(void) |
45 | static inline void cpu_sleep(void) |
44 | { |
46 | { |
45 | // not implemented on gxemul |
- | |
46 | } |
47 | } |
47 | 48 | ||
48 | 49 | ||
49 | /** Return base address of current stack |
50 | /** Return base address of current stack |
50 | * |
51 | * |
Line 53... | Line 54... | ||
53 | * The stack must start on page boundary. |
54 | * The stack must start on page boundary. |
54 | */ |
55 | */ |
55 | static inline uintptr_t get_stack_base(void) |
56 | static inline uintptr_t get_stack_base(void) |
56 | { |
57 | { |
57 | uintptr_t v; |
58 | uintptr_t v; |
- | 59 | asm volatile ( |
|
- | 60 | "and %0, sp, %1\n" |
|
- | 61 | : "=r" (v) |
|
58 | asm volatile ("and %0, sp, %1\n" : "=r" (v) : "r" (~(STACK_SIZE-1))); |
62 | : "r" (~(STACK_SIZE-1)) |
- | 63 | ); |
|
59 | return v; |
64 | return v; |
60 | } |
65 | } |
61 | 66 | ||
62 | 67 | ||
63 | extern void cpu_halt(void); |
68 | extern void cpu_halt(void); |
64 | extern void asm_delay_loop(uint32_t t); |
69 | extern void asm_delay_loop(uint32_t t); |
65 | extern void userspace_asm(uintptr_t ustack, uintptr_t uspace_uarg, uintptr_t entry); |
70 | extern void userspace_asm(uintptr_t ustack, uintptr_t uspace_uarg, uintptr_t entry); |
66 | 71 | ||
67 | extern ipl_t interrupts_disable(void); |
- | |
68 | extern ipl_t interrupts_enable(void); |
- | |
69 | extern void interrupts_restore(ipl_t ipl); |
- | |
70 | extern ipl_t interrupts_read(void); |
- | |
71 | - | ||
72 | 72 | ||
73 | #endif |
73 | #endif |
74 | 74 | ||
75 | /** @} |
75 | /** @} |
76 | */ |
76 | */ |