2
* Copyright (c) 2005 Jakub Jermar
5
* Redistribution and use in source and binary forms, with or without
6
* modification, are permitted provided that the following conditions
9
* - Redistributions of source code must retain the above copyright
10
* notice, this list of conditions and the following disclaimer.
11
* - Redistributions in binary form must reproduce the above copyright
12
* notice, this list of conditions and the following disclaimer in the
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
15
* derived from this software without specific prior written permission.
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
19
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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
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
26
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
/** @addtogroup sparc64mm
35
#ifndef KERN_sparc64_PAGE_H_
36
#define KERN_sparc64_PAGE_H_
38
#include <arch/mm/frame.h>
41
* On the TLB and TSB level, we still use 8K pages, which are supported by the
44
#define MMU_PAGE_WIDTH MMU_FRAME_WIDTH
45
#define MMU_PAGE_SIZE MMU_FRAME_SIZE
48
* On the page table level, we use 16K pages. 16K pages are not supported by
49
* the MMU but we emulate them with pairs of 8K pages.
51
#define PAGE_WIDTH FRAME_WIDTH
52
#define PAGE_SIZE FRAME_SIZE
54
#define MMU_PAGES_PER_PAGE (1 << (PAGE_WIDTH - MMU_PAGE_WIDTH))
60
#include <arch/interrupt.h>
62
extern uintptr_t physmem_base;
64
#define KA2PA(x) (((uintptr_t) (x)) + physmem_base)
65
#define PA2KA(x) (((uintptr_t) (x)) - physmem_base)
70
uint64_t vpn : 51; /**< Virtual Page Number. */
71
unsigned offset : 13; /**< Offset. */
72
} __attribute__ ((packed));
75
extern void page_arch_init(void);
77
#endif /* !def __ASM__ */