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 */
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 */
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#ifndef KERN_sparc64_TSB_H_
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#ifndef KERN_sparc64_TSB_H_
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#define KERN_sparc64_TSB_H_
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#define KERN_sparc64_TSB_H_
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#include <arch/mm/tte.h>
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#include <arch/mm/mmu.h>
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#include <arch/types.h>
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#include <typedefs.h>
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/*
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/*
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 * ITSB abd DTSB will claim 64K of memory, which
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 * ITSB abd DTSB will claim 64K of memory, which
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 * is a nice number considered that it is one of
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 * is a nice number considered that it is one of
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 * the page sizes supported by hardware, which,
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 * the page sizes supported by hardware, which,
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 * again, is nice because TSBs need to be locked
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 * again, is nice because TSBs need to be locked
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 */
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 */
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#define TSB_SIZE            2           /* when changing this, change as.c as well */
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#define TSB_SIZE            2           /* when changing this, change as.c as well */
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#define ITSB_ENTRY_COUNT        (512*(1<<TSB_SIZE))
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#define ITSB_ENTRY_COUNT        (512*(1<<TSB_SIZE))
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#define DTSB_ENTRY_COUNT        (512*(1<<TSB_SIZE))
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#define DTSB_ENTRY_COUNT        (512*(1<<TSB_SIZE))
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#define TSB_TAG_TARGET_CONTEXT_SHIFT    48
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#ifndef __ASM__
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#include <arch/mm/tte.h>
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#include <arch/mm/mmu.h>
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#include <arch/types.h>
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#include <typedefs.h>
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/** TSB Tag Target register. */
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union tsb_tag_target {
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    uint64_t value;
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    struct {
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        unsigned invalid : 1;   /**< Invalidated by software. */
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        unsigned : 2;
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        unsigned context : 13;  /**< Software ASID. */
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        unsigned : 6;
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        uint64_t va_tag : 42;   /**< Virtual address bits <63:22>. */
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    } __attribute__ ((packed));
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};
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typedef union tsb_tag_target tsb_tag_target_t;
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/** TSB entry. */
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struct tsb_entry {
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struct tsb_entry {
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    tte_tag_t tag;
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    tsb_tag_target_t tag;
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    tte_data_t data;
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    tte_data_t data;
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} __attribute__ ((packed));
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} __attribute__ ((packed));
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typedef struct tsb_entry tsb_entry_t;
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typedef struct tsb_entry tsb_entry_t;
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/** TSB Base register. */
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/** TSB Base register. */
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{
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{
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    asi_u64_write(ASI_DMMU, VA_DMMU_TSB_BASE, v);
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    asi_u64_write(ASI_DMMU, VA_DMMU_TSB_BASE, v);
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}
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}
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extern void tsb_invalidate(as_t *as, uintptr_t page, count_t pages);
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extern void tsb_invalidate(as_t *as, uintptr_t page, count_t pages);
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extern void itsb_pte_copy(pte_t *t);
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extern void dtsb_pte_copy(pte_t *t, bool ro);
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#endif /* !def __ASM__ */
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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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 */