0,0 → 1,89 |
/* |
* Copyright (c) 2005 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
/** @addtogroup sparc64mm |
* @{ |
*/ |
/** @file |
*/ |
|
#ifndef KERN_sparc64_PAGE_H_ |
#define KERN_sparc64_PAGE_H_ |
|
#include <arch/mm/frame.h> |
|
/* |
* On the TLB and TSB level, we still use 8K pages, which are supported by the |
* MMU. |
*/ |
#define MMU_PAGE_WIDTH MMU_FRAME_WIDTH |
#define MMU_PAGE_SIZE MMU_FRAME_SIZE |
|
/* |
* On the page table level, we use 16K pages. 16K pages are not supported by |
* the MMU but we emulate them with pairs of 8K pages. |
*/ |
#define PAGE_WIDTH FRAME_WIDTH |
#define PAGE_SIZE FRAME_SIZE |
|
#define MMU_PAGES_PER_PAGE (1 << (PAGE_WIDTH - MMU_PAGE_WIDTH)) |
|
/* |
* With 16K pages, there is only one page color. |
*/ |
#define PAGE_COLOR_BITS 0 /**< 14 - 14; 2^14 == 16K == alias boundary. */ |
|
#ifdef KERNEL |
|
#ifndef __ASM__ |
|
#include <arch/interrupt.h> |
|
extern uintptr_t physmem_base; |
|
#define KA2PA(x) (((uintptr_t) (x)) + physmem_base) |
#define PA2KA(x) (((uintptr_t) (x)) - physmem_base) |
|
typedef union { |
uintptr_t address; |
struct { |
uint64_t vpn : 51; /**< Virtual Page Number. */ |
unsigned offset : 13; /**< Offset. */ |
} __attribute__ ((packed)); |
} page_address_t; |
|
extern void page_arch_init(void); |
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#endif /* !def __ASM__ */ |
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#endif /* KERNEL */ |
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#endif |
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/** @} |
*/ |