/*
* Copyright (c) 2006 Jakub Jermar
* Copyright (c) 2009 Pavel Rimsky
* 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 kernel_sparc64_mm
* @{
*/
/** @file
*/
#ifndef KERN_sparc64_sun4v_TSB_H_
#define KERN_sparc64_sun4v_TSB_H_
/*
* TSB will claim 64K of memory, which
* is a nice number considered that it is one of
* the page sizes supported by hardware, which,
* again, is nice because TSBs need to be locked
* in TLBs - only one TLB entry will do.
*/
#define TSB_ENTRY_COUNT 4096
#define TSB_ENTRY_MASK (TSB_ENTRY_COUNT - 1)
#define TSB_SIZE (TSB_ENTRY_COUNT * sizeof(tsb_entry_t))
#define TSB_FRAMES SIZE2FRAMES(TSB_SIZE)
#ifndef __ASSEMBLER__
#include <stdbool.h>
#include <typedefs.h>
#include <arch/mm/tte.h>
#include <arch/mm/mmu.h>
/** TSB description, used in hypercalls */
typedef struct tsb_descr {
uint16_t page_size; /**< Page size (0 = 8K, 1 = 64K,...). */
uint16_t associativity; /**< TSB associativity (will be 1). */
uint32_t num_ttes; /**< Number of TTEs. */
uint32_t context; /**< Context number. */
uint32_t pgsize_mask; /**< Equals "1 << page_size". */
uint64_t tsb_base; /**< Real address of TSB base. */
uint64_t reserved;
} __attribute__((packed)) tsb_descr_t;
/* Forward declarations. */
struct as;
struct pte;
extern void tsb_invalidate(struct as *as, uintptr_t page, size_t pages);
extern void itsb_pte_copy(struct pte *t);
extern void dtsb_pte_copy(struct pte *t, bool ro);
#endif /* !def __ASSEMBLER__ */
#endif
/** @}
*/