96 lines
3.4 KiB
C
96 lines
3.4 KiB
C
|
/*-
|
||
|
|
* Copyright (c) 2001 Jake Burkholder.
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. 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.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
|
||
|
|
*
|
||
|
|
* $FreeBSD$
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _MACHINE_TLB_H_
|
||
|
|
#define _MACHINE_TLB_H_
|
||
|
|
|
||
|
|
#define TLB_DIRECT_ADDRESS_BITS (43)
|
||
|
|
#define TLB_DIRECT_PAGE_BITS (PAGE_SHIFT_4M)
|
||
|
|
|
||
|
|
#define TLB_DIRECT_ADDRESS_MASK ((1UL << TLB_DIRECT_ADDRESS_BITS) - 1)
|
||
|
|
#define TLB_DIRECT_PAGE_MASK ((1UL << TLB_DIRECT_PAGE_BITS) - 1)
|
||
|
|
|
||
|
|
#define TLB_PHYS_TO_DIRECT(pa) \
|
||
|
|
((pa) | VM_MIN_DIRECT_ADDRESS)
|
||
|
|
#define TLB_DIRECT_TO_PHYS(va) \
|
||
|
|
((va) & TLB_DIRECT_ADDRESS_MASK)
|
||
|
|
#define TLB_DIRECT_TO_TTE_MASK \
|
||
|
|
(TD_V | TD_4M | (TLB_DIRECT_ADDRESS_MASK - TLB_DIRECT_PAGE_MASK))
|
||
|
|
|
||
|
|
#define TLB_DAR_SLOT_SHIFT (3)
|
||
|
|
#define TLB_DAR_SLOT(slot) ((slot) << TLB_DAR_SLOT_SHIFT)
|
||
|
|
|
||
|
|
#define TAR_VPN_SHIFT (13)
|
||
|
|
#define TAR_CTX_MASK ((1 << TAR_VPN_SHIFT) - 1)
|
||
|
|
|
||
|
|
#define TLB_TAR_VA(va) ((va) & ~TAR_CTX_MASK)
|
||
|
|
#define TLB_TAR_CTX(ctx) ((ctx) & TAR_CTX_MASK)
|
||
|
|
|
||
|
|
#define TLB_DEMAP_ID_SHIFT (4)
|
||
|
|
#define TLB_DEMAP_ID_PRIMARY (0)
|
||
|
|
#define TLB_DEMAP_ID_SECONDARY (1)
|
||
|
|
#define TLB_DEMAP_ID_NUCLEUS (2)
|
||
|
|
|
||
|
|
#define TLB_DEMAP_TYPE_SHIFT (6)
|
||
|
|
#define TLB_DEMAP_TYPE_PAGE (0)
|
||
|
|
#define TLB_DEMAP_TYPE_CONTEXT (1)
|
||
|
|
|
||
|
|
#define TLB_DEMAP_VA(va) ((va) & ~PAGE_MASK)
|
||
|
|
#define TLB_DEMAP_ID(id) ((id) << TLB_DEMAP_ID_SHIFT)
|
||
|
|
#define TLB_DEMAP_TYPE(type) ((type) << TLB_DEMAP_TYPE_SHIFT)
|
||
|
|
|
||
|
|
#define TLB_DEMAP_PAGE (TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_PAGE))
|
||
|
|
#define TLB_DEMAP_CONTEXT (TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_CONTEXT))
|
||
|
|
|
||
|
|
#define TLB_DEMAP_PRIMARY (TLB_DEMAP_ID(TLB_DEMAP_ID_PRIMARY))
|
||
|
|
#define TLB_DEMAP_SECONDARY (TLB_DEMAP_ID(TLB_DEMAP_ID_SECONDARY))
|
||
|
|
#define TLB_DEMAP_NUCLEUS (TLB_DEMAP_ID(TLB_DEMAP_ID_NUCLEUS))
|
||
|
|
|
||
|
|
#define TLB_CTX_KERNEL (0)
|
||
|
|
#define TLB_CTX_USER_MIN (1)
|
||
|
|
#define TLB_CTX_USER_MAX (8192)
|
||
|
|
|
||
|
|
typedef void tlb_flush_user_t(void);
|
||
|
|
|
||
|
|
struct pmap;
|
||
|
|
struct tlb_entry;
|
||
|
|
|
||
|
|
extern int kernel_tlb_slots;
|
||
|
|
extern struct tlb_entry *kernel_tlbs;
|
||
|
|
|
||
|
|
void tlb_context_demap(struct pmap *pm);
|
||
|
|
void tlb_page_demap(struct pmap *pm, vm_offset_t va);
|
||
|
|
void tlb_range_demap(struct pmap *pm, vm_offset_t start, vm_offset_t end);
|
||
|
|
|
||
|
|
tlb_flush_user_t cheetah_tlb_flush_user;
|
||
|
|
tlb_flush_user_t spitfire_tlb_flush_user;
|
||
|
|
|
||
|
|
extern tlb_flush_user_t *tlb_flush_user;
|
||
|
|
|
||
|
|
#endif /* !_MACHINE_TLB_H_ */
|