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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 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 | #ifndef __TLB_H__ |
29 | #ifndef __TLB_H__ |
| 30 | #define __TLB_H__ |
30 | #define __TLB_H__ |
| 31 | 31 | ||
| 32 | #include <arch/mm/asid.h> |
32 | #include <arch/mm/asid.h> |
| 33 | #include <arch/types.h> |
33 | #include <arch/types.h> |
| 34 | - | ||
| 35 | extern void tlb_init(void); |
- | |
| 36 | - | ||
| 37 | #ifdef CONFIG_SMP |
34 | #include <typedefs.h> |
| 38 | extern void tlb_shootdown_start(void); |
- | |
| 39 | extern void tlb_shootdown_finalize(void); |
- | |
| 40 | extern void tlb_shootdown_ipi_recv(void); |
- | |
| 41 | #else |
- | |
| 42 | # define tlb_shootdown_start() ; |
- | |
| 43 | # define tlb_shootdown_finalize() ; |
- | |
| 44 | # define tlb_shootdown_ipi_recv() ; |
- | |
| 45 | #endif /* CONFIG_SMP */ |
- | |
| 46 | 35 | ||
| 47 | /** Type of TLB shootdown message. */ |
36 | /** Type of TLB shootdown message. */ |
| 48 | enum tlb_invalidate_type { |
37 | enum tlb_invalidate_type { |
| 49 | TLB_INVL_INVALID = 0, /**< Invalid type. */ |
38 | TLB_INVL_INVALID = 0, /**< Invalid type. */ |
| 50 | TLB_INVL_ALL, /**< Invalidate all entries in TLB. */ |
39 | TLB_INVL_ALL, /**< Invalidate all entries in TLB. */ |
| 51 | TLB_INVL_ASID, /**< Invalidate all entries belonging to one address space. */ |
40 | TLB_INVL_ASID, /**< Invalidate all entries belonging to one address space. */ |
| 52 | TLB_INVL_PAGE /**< Invalidate one entry for specified page. */ |
41 | TLB_INVL_PAGES /**< Invalidate specified page range belonging to one address space. */ |
| 53 | }; |
42 | }; |
| 54 | 43 | ||
| 55 | typedef enum tlb_invalidate_type tlb_invalidate_type_t; |
44 | typedef enum tlb_invalidate_type tlb_invalidate_type_t; |
| 56 | 45 | ||
| 57 | /** TLB shootdown message. */ |
46 | /** TLB shootdown message. */ |
| 58 | struct tlb_shootdown_msg { |
47 | struct tlb_shootdown_msg { |
| 59 | tlb_invalidate_type_t type; /**< Message type. */ |
48 | tlb_invalidate_type_t type; /**< Message type. */ |
| 60 | asid_t asid; /**< Address space identifier. */ |
49 | asid_t asid; /**< Address space identifier. */ |
| 61 | __address page; /**< Page address. */ |
50 | __address page; /**< Page address. */ |
| 62 | }; |
51 | }; |
| 63 | 52 | ||
| 64 | typedef struct tlb_shootdown_msg tlb_shootdown_msg_t; |
53 | typedef struct tlb_shootdown_msg tlb_shootdown_msg_t; |
| 65 | 54 | ||
| - | 55 | extern void tlb_init(void); |
|
| - | 56 | ||
| - | 57 | #ifdef CONFIG_SMP |
|
| - | 58 | extern void tlb_shootdown_start(tlb_invalidate_type_t type, asid_t asid, __address page, count_t cnt); |
|
| - | 59 | extern void tlb_shootdown_finalize(void); |
|
| - | 60 | extern void tlb_shootdown_ipi_recv(void); |
|
| - | 61 | #else |
|
| - | 62 | # define tlb_shootdown_start(w, x, y, z) |
|
| - | 63 | # define tlb_shootdown_finalize() |
|
| - | 64 | # define tlb_shootdown_ipi_recv() |
|
| - | 65 | #endif /* CONFIG_SMP */ |
|
| - | 66 | ||
| - | 67 | ||
| 66 | /* Export TLB interface that each architecture must implement. */ |
68 | /* Export TLB interface that each architecture must implement. */ |
| 67 | extern void tlb_arch_init(void); |
69 | extern void tlb_arch_init(void); |
| 68 | extern void tlb_print(void); |
70 | extern void tlb_print(void); |
| 69 | extern void tlb_invalidate(asid_t asid); |
- | |
| 70 | extern void tlb_shootdown_ipi_send(void); |
71 | extern void tlb_shootdown_ipi_send(void); |
| 71 | 72 | ||
| 72 | extern void tlb_invalidate_all(void); |
73 | extern void tlb_invalidate_all(void); |
| 73 | extern void tlb_invalidate_asid(asid_t asid); |
74 | extern void tlb_invalidate_asid(asid_t asid); |
| 74 | extern void tlb_invalidate_page(asid_t asid, __address page); |
75 | extern void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt); |
| 75 | - | ||
| 76 | #endif |
76 | #endif |
| 77 | 77 | ||