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| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2003-2004 Jakub Jermar |
2 | * Copyright (c) 2003-2004 Jakub Jermar |
| 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: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
| 14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | /** @addtogroup mips32 |
29 | /** @addtogroup mips32 |
| 30 | * @{ |
30 | * @{ |
| 31 | */ |
31 | */ |
| 32 | /** @file |
32 | /** @file |
| 33 | */ |
33 | */ |
| 34 | 34 | ||
| 35 | #ifndef KERN_mips32_ASM_H_ |
35 | #ifndef KERN_mips32_ASM_H_ |
| 36 | #define KERN_mips32_ASM_H_ |
36 | #define KERN_mips32_ASM_H_ |
| 37 | 37 | ||
| 38 | #include <arch/types.h> |
38 | #include <arch/types.h> |
| - | 39 | #include <typedefs.h> |
|
| 39 | #include <config.h> |
40 | #include <config.h> |
| 40 | 41 | ||
| 41 | 42 | ||
| 42 | static inline void cpu_sleep(void) |
43 | static inline void cpu_sleep(void) |
| 43 | { |
44 | { |
| 44 | /* Most of the simulators do not support */ |
45 | /* Most of the simulators do not support */ |
| 45 | /* asm volatile ("wait"); */ |
46 | /* asm volatile ("wait"); */ |
| 46 | } |
47 | } |
| 47 | 48 | ||
| 48 | /** Return base address of current stack |
49 | /** Return base address of current stack |
| 49 | * |
50 | * |
| 50 | * Return the base address of the current stack. |
51 | * Return the base address of the current stack. |
| 51 | * The stack is assumed to be STACK_SIZE bytes long. |
52 | * The stack is assumed to be STACK_SIZE bytes long. |
| 52 | * The stack must start on page boundary. |
53 | * The stack must start on page boundary. |
| 53 | */ |
54 | */ |
| 54 | static inline uintptr_t get_stack_base(void) |
55 | static inline uintptr_t get_stack_base(void) |
| 55 | { |
56 | { |
| 56 | uintptr_t v; |
57 | uintptr_t v; |
| 57 | 58 | ||
| - | 59 | asm volatile ( |
|
| - | 60 | "and %0, $29, %1\n" |
|
| - | 61 | : "=r" (v) |
|
| 58 | asm volatile ("and %0, $29, %1\n" : "=r" (v) : "r" (~(STACK_SIZE-1))); |
62 | : "r" (~(STACK_SIZE-1)) |
| - | 63 | ); |
|
| 59 | 64 | ||
| 60 | return v; |
65 | return v; |
| 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, |
70 | extern void userspace_asm(uintptr_t ustack, uintptr_t uspace_uarg, |
| 66 | uintptr_t entry); |
71 | uintptr_t entry); |
| 67 | 72 | ||
| 68 | extern ipl_t interrupts_disable(void); |
73 | extern ipl_t interrupts_disable(void); |
| 69 | extern ipl_t interrupts_enable(void); |
74 | extern ipl_t interrupts_enable(void); |
| 70 | extern void interrupts_restore(ipl_t ipl); |
75 | extern void interrupts_restore(ipl_t ipl); |
| 71 | extern ipl_t interrupts_read(void); |
76 | extern ipl_t interrupts_read(void); |
| - | 77 | extern void asm_delay_loop(uint32_t t); |
|
| - | 78 | ||
| - | 79 | static inline void pio_write_8(ioport8_t *port, uint8_t v) |
|
| - | 80 | { |
|
| - | 81 | *port = v; |
|
| - | 82 | } |
|
| - | 83 | ||
| - | 84 | static inline void pio_write_16(ioport16_t *port, uint16_t v) |
|
| - | 85 | { |
|
| - | 86 | *port = v; |
|
| - | 87 | } |
|
| - | 88 | ||
| - | 89 | static inline void pio_write_32(ioport32_t *port, uint32_t v) |
|
| - | 90 | { |
|
| - | 91 | *port = v; |
|
| - | 92 | } |
|
| - | 93 | ||
| - | 94 | static inline uint8_t pio_read_8(ioport8_t *port) |
|
| - | 95 | { |
|
| - | 96 | return *port; |
|
| - | 97 | } |
|
| - | 98 | ||
| - | 99 | static inline uint16_t pio_read_16(ioport16_t *port) |
|
| - | 100 | { |
|
| - | 101 | return *port; |
|
| - | 102 | } |
|
| - | 103 | ||
| - | 104 | static inline uint32_t pio_read_32(ioport32_t *port) |
|
| - | 105 | { |
|
| - | 106 | return *port; |
|
| - | 107 | } |
|
| 72 | 108 | ||
| 73 | #endif |
109 | #endif |
| 74 | 110 | ||
| 75 | /** @} |
111 | /** @} |
| 76 | */ |
112 | */ |
| 77 | 113 | ||