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 */
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 */
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#ifndef KERN_sparc64_PAGE_H_
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#ifndef KERN_sparc64_PAGE_H_
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#define KERN_sparc64_PAGE_H_
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#define KERN_sparc64_PAGE_H_
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#include <arch/mm/frame.h>
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/*
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 * On the TLB and TSB level, we still use 8K pages, which are supported by the
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 * MMU.
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 */
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#define MMU_PAGE_WIDTH  MMU_FRAME_WIDTH
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#define MMU_PAGE_SIZE   MMU_FRAME_SIZE
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/*
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 * On the page table level, we use 16K pages. 16K pages are not supported by
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 * the MMU but we emulate them with pairs of 8K pages.
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 */
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#define PAGE_WIDTH  FRAME_WIDTH
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#define PAGE_SIZE   FRAME_SIZE
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#define MMU_PAGES_PER_PAGE  (1 << (PAGE_WIDTH - MMU_PAGE_WIDTH))
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#ifdef KERNEL
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#ifndef __ASM__
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#if defined(SUN4U)
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#include <arch/interrupt.h>
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#include <arch/mm/sun4u/page.h>
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extern uintptr_t physmem_base;
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#define KA2PA(x)    (((uintptr_t) (x)) + physmem_base)
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#define PA2KA(x)    (((uintptr_t) (x)) - physmem_base)
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typedef union {
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#elif defined (SUN4V)
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    uintptr_t address;
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    struct {
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        uint64_t vpn : 51;      /**< Virtual Page Number. */
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        unsigned offset : 13;       /**< Offset. */
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    } __attribute__ ((packed));
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} page_address_t;
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extern void page_arch_init(void);
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#include <arch/mm/sun4v/page.h>
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#endif /* !def __ASM__ */
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#endif /* KERNEL */
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#endif
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#endif
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#endif
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/** @}
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/** @}
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 */
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 */