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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3862 | rimsky | 1 | /* |
| 2 | * Copyright (c) 2005 Jakub Jermar |
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| 3 | * Copyright (c) 2009 Pavel Rimsky |
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| 4 | * All rights reserved. |
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| 5 | * |
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| 6 | * Redistribution and use in source and binary forms, with or without |
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| 7 | * modification, are permitted provided that the following conditions |
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| 8 | * are met: |
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| 9 | * |
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| 10 | * - Redistributions of source code must retain the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer. |
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| 12 | * - Redistributions in binary form must reproduce the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer in the |
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| 14 | * documentation and/or other materials provided with the distribution. |
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| 15 | * - The name of the author may not be used to endorse or promote products |
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| 16 | * derived from this software without specific prior written permission. |
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| 17 | * |
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | */ |
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| 29 | |||
| 30 | /** @addtogroup sparc64mm |
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| 31 | * @{ |
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| 32 | */ |
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| 33 | /** @file |
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| 34 | */ |
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| 35 | |||
| 36 | #ifndef KERN_sparc64_sun4v_AS_H_ |
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| 37 | #define KERN_sparc64_sun4v_AS_H_ |
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| 38 | |||
| 39 | #include <arch/mm/tte.h> |
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| 40 | #include <arch/mm/tsb.h> |
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| 41 | |||
| 42 | #define KERNEL_ADDRESS_SPACE_SHADOWED_ARCH 1 |
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| 43 | |||
| 44 | #define KERNEL_ADDRESS_SPACE_START_ARCH (unsigned long) 0x0000000000000000 |
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| 45 | #define KERNEL_ADDRESS_SPACE_END_ARCH (unsigned long) 0xffffffffffffffff |
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| 46 | #define USER_ADDRESS_SPACE_START_ARCH (unsigned long) 0x0000000000000000 |
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| 47 | #define USER_ADDRESS_SPACE_END_ARCH (unsigned long) 0xffffffffffffffff |
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| 48 | |||
| 49 | #define USTACK_ADDRESS_ARCH (0xffffffffffffffffULL - (PAGE_SIZE - 1)) |
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| 50 | |||
| 51 | #ifdef CONFIG_TSB |
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| 52 | |||
| 53 | /** |
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| 54 | * TTE Tag. |
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| 55 | * |
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| 56 | * Even though for sun4v the format of the TSB Tag states that the context |
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| 57 | * field has 16 bits, the T1 CPU still only supports 13-bit contexts and the |
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| 58 | * three most significant bits are always zero. |
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| 59 | */ |
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| 60 | typedef union tte_tag { |
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| 61 | uint64_t value; |
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| 62 | struct { |
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| 63 | unsigned invalid : 1; /**< Invalidated by software. */ |
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| 64 | unsigned : 2; |
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| 65 | unsigned context : 13; /**< Software ASID. */ |
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| 66 | unsigned : 6; |
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| 67 | uint64_t va_tag : 42; /**< Virtual address bits <63:22>. */ |
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| 68 | } __attribute__ ((packed)); |
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| 69 | } tte_tag_t; |
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| 70 | |||
| 71 | /** TSB entry. */ |
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| 72 | typedef struct tsb_entry { |
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| 73 | tte_tag_t tag; |
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| 74 | tte_data_t data; |
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| 75 | } __attribute__ ((packed)) tsb_entry_t; |
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| 76 | |||
| 77 | typedef struct { |
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| 78 | tsb_descr_t tsb_description; |
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| 79 | } as_arch_t; |
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| 80 | |||
| 81 | #else |
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| 82 | |||
| 83 | typedef struct { |
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| 84 | } as_arch_t; |
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| 85 | |||
| 86 | #endif /* CONFIG_TSB */ |
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| 87 | |||
| 88 | #include <genarch/mm/as_ht.h> |
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| 89 | |||
| 90 | #ifdef CONFIG_TSB |
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| 91 | #include <arch/mm/tsb.h> |
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| 92 | #define as_invalidate_translation_cache(as, page, cnt) \ |
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| 93 | tsb_invalidate((as), (page), (cnt)) |
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| 94 | #else |
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| 95 | #define as_invalidate_translation_cache(as, page, cnt) |
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| 96 | #endif |
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| 97 | |||
| 98 | extern void as_arch_init(void); |
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| 99 | |||
| 100 | #endif |
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| 101 | |||
| 102 | /** @} |
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| 103 | */ |