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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3862 | rimsky | 1 | /* |
| 2 | * Copyright (c) 2005 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | /** @addtogroup sparc64mm |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 35 | #ifndef KERN_sparc64_sun4u_FRAME_H_ |
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| 36 | #define KERN_sparc64_sun4u_FRAME_H_ |
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| 37 | |||
| 38 | /* |
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| 39 | * Page size supported by the MMU. |
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| 40 | * For 8K there is the nasty illegal virtual aliasing problem. |
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| 41 | * Therefore, the kernel uses 8K only internally on the TLB and TSB levels. |
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| 42 | */ |
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| 43 | #define MMU_FRAME_WIDTH 13 /* 8K */ |
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| 44 | #define MMU_FRAME_SIZE (1 << MMU_FRAME_WIDTH) |
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| 45 | |||
| 46 | /* |
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| 47 | * Page size exported to the generic memory management subsystems. |
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| 48 | * This page size is not directly supported by the MMU, but we can emulate |
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| 49 | * each 16K page with a pair of adjacent 8K pages. |
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| 50 | */ |
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| 51 | #define FRAME_WIDTH 14 /* 16K */ |
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| 52 | #define FRAME_SIZE (1 << FRAME_WIDTH) |
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| 53 | |||
| 54 | #ifdef KERNEL |
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| 55 | #ifndef __ASM__ |
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| 56 | |||
| 57 | #include <arch/types.h> |
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| 58 | |||
| 59 | union frame_address { |
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| 60 | uintptr_t address; |
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| 61 | struct { |
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| 62 | #if defined (US) |
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| 63 | unsigned : 23; |
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| 64 | uint64_t pfn : 28; /**< Physical Frame Number. */ |
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| 65 | #elif defined (US3) |
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| 66 | unsigned : 21; |
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| 67 | uint64_t pfn : 30; /**< Physical Frame Number. */ |
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| 68 | #endif |
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| 69 | unsigned offset : 13; /**< Offset. */ |
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| 70 | } __attribute__ ((packed)); |
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| 71 | }; |
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| 72 | |||
| 73 | typedef union frame_address frame_address_t; |
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| 74 | |||
| 75 | extern uintptr_t last_frame; |
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| 76 | extern void frame_arch_init(void); |
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| 77 | #define physmem_print() |
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| 78 | |||
| 79 | #endif |
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| 80 | #endif |
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| 81 | |||
| 82 | #endif |
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| 83 | |||
| 84 | /** @} |
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| 85 | */ |