tlb.h revision 80709
180709Sjake/*- 280709Sjake * Copyright (c) 2001 Jake Burkholder. 380709Sjake * All rights reserved. 480709Sjake * 580709Sjake * Redistribution and use in source and binary forms, with or without 680709Sjake * modification, are permitted provided that the following conditions 780709Sjake * are met: 880709Sjake * 1. Redistributions of source code must retain the above copyright 980709Sjake * notice, this list of conditions and the following disclaimer. 1080709Sjake * 2. Redistributions in binary form must reproduce the above copyright 1180709Sjake * notice, this list of conditions and the following disclaimer in the 1280709Sjake * documentation and/or other materials provided with the distribution. 1380709Sjake * 1480709Sjake * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 1580709Sjake * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1680709Sjake * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1780709Sjake * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 1880709Sjake * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1980709Sjake * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2080709Sjake * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2180709Sjake * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2280709Sjake * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2380709Sjake * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2480709Sjake * SUCH DAMAGE. 2580709Sjake * 2680709Sjake * $FreeBSD: head/sys/sparc64/include/tlb.h 80709 2001-07-31 06:05:05Z jake $ 2780709Sjake */ 2880709Sjake 2980709Sjake#ifndef _MACHINE_TLB_H_ 3080709Sjake#define _MACHINE_TLB_H_ 3180709Sjake 3280709Sjake#define TLB_SLOT_COUNT 64 3380709Sjake 3480709Sjake#define TLB_SLOT_TSB_KERNEL_MIN 60 /* XXX */ 3580709Sjake#define TLB_SLOT_TSB_USER_PRIMARY 61 3680709Sjake#define TLB_SLOT_TSB_USER_SECONDARY 62 3780709Sjake#define TLB_SLOT_KERNEL 63 3880709Sjake 3980709Sjake#define TLB_DAR_SLOT_SHIFT (3) 4080709Sjake#define TLB_DAR_SLOT(slot) ((slot) << TLB_DAR_SLOT_SHIFT) 4180709Sjake 4280709Sjake#define TLB_TAR_VA(va) ((va) & ~PAGE_MASK) 4380709Sjake#define TLB_TAR_CTX(ctx) (ctx) 4480709Sjake 4580709Sjake#define TLB_DEMAP_ID_SHIFT (4) 4680709Sjake#define TLB_DEMAP_ID_PRIMARY (0) 4780709Sjake#define TLB_DEMAP_ID_SECONDARY (1) 4880709Sjake#define TLB_DEMAP_ID_NUCLEUS (2) 4980709Sjake 5080709Sjake#define TLB_DEMAP_TYPE_SHIFT (6) 5180709Sjake#define TLB_DEMAP_TYPE_PAGE (0) 5280709Sjake#define TLB_DEMAP_TYPE_CONTEXT (1) 5380709Sjake 5480709Sjake#define TLB_DEMAP_VA(va) ((va) & ~PAGE_MASK) 5580709Sjake#define TLB_DEMAP_ID(id) ((id) << TLB_DEMAP_ID_SHIFT) 5680709Sjake#define TLB_DEMAP_TYPE(type) ((type) << TLB_DEMAP_TYPE_SHIFT) 5780709Sjake 5880709Sjake#define TLB_DEMAP_PAGE (TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_PAGE)) 5980709Sjake#define TLB_DEMAP_CONTEXT (TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_CONTEXT)) 6080709Sjake 6180709Sjake#define TLB_DEMAP_PRIMARY (TLB_DEMAP_ID(TLB_DEMAP_ID_PRIMARY)) 6280709Sjake#define TLB_DEMAP_SECONDARY (TLB_DEMAP_ID(TLB_DEMAP_ID_SECONDARY)) 6380709Sjake#define TLB_DEMAP_NUCLEUS (TLB_DEMAP_ID(TLB_DEMAP_ID_NUCLEUS)) 6480709Sjake 6580709Sjake#define TLB_CTX_KERNEL (0) 6680709Sjake 6780709Sjake#define TLB_DTLB (1 << 0) 6880709Sjake#define TLB_ITLB (1 << 1) 6980709Sjake 7080709Sjakestatic __inline void 7180709Sjaketlb_dtlb_page_demap(u_int ctx, vm_offset_t va) 7280709Sjake{ 7380709Sjake if (ctx == TLB_CTX_KERNEL) { 7480709Sjake stxa(TLB_DEMAP_VA(va) | TLB_DEMAP_NUCLEUS | TLB_DEMAP_PAGE, 7580709Sjake ASI_DMMU_DEMAP, 0); 7680709Sjake membar(Sync); 7780709Sjake } else 7880709Sjake TODO; 7980709Sjake} 8080709Sjake 8180709Sjakestatic __inline void 8280709Sjaketlb_dtlb_store(vm_offset_t va, struct tte tte) 8380709Sjake{ 8480709Sjake stxa(AA_DMMU_TAR, ASI_DMMU, TLB_TAR_VA(va) | TLB_TAR_CTX(0)); 8580709Sjake stxa(0, ASI_DTLB_DATA_IN_REG, tte.tte_data); 8680709Sjake membar(Sync); 8780709Sjake} 8880709Sjake 8980709Sjakestatic __inline void 9080709Sjaketlb_dtlb_store_slot(vm_offset_t va, struct tte tte, int slot) 9180709Sjake{ 9280709Sjake stxa(AA_DMMU_TAR, ASI_DMMU, TLB_TAR_VA(va) | TLB_TAR_CTX(0)); 9380709Sjake stxa(TLB_DAR_SLOT(slot), ASI_DTLB_DATA_ACCESS_REG, tte.tte_data); 9480709Sjake membar(Sync); 9580709Sjake} 9680709Sjake 9780709Sjakestatic __inline void 9880709Sjaketlb_itlb_page_demap(u_int ctx, vm_offset_t va) 9980709Sjake{ 10080709Sjake if (ctx == TLB_CTX_KERNEL) { 10180709Sjake stxa(TLB_DEMAP_VA(va) | TLB_DEMAP_NUCLEUS | TLB_DEMAP_PAGE, 10280709Sjake ASI_IMMU_DEMAP, 0); 10380709Sjake flush(KERNBASE); 10480709Sjake } else 10580709Sjake TODO; 10680709Sjake} 10780709Sjake 10880709Sjakestatic __inline void 10980709Sjaketlb_itlb_store(vm_offset_t va, struct tte tte) 11080709Sjake{ 11180709Sjake TODO; 11280709Sjake} 11380709Sjake 11480709Sjakestatic __inline void 11580709Sjaketlb_itlb_store_slot(vm_offset_t va, struct tte tte, int slot) 11680709Sjake{ 11780709Sjake stxa(AA_IMMU_TAR, ASI_IMMU, TLB_TAR_VA(va) | TLB_TAR_CTX(0)); 11880709Sjake stxa(TLB_DAR_SLOT(slot), ASI_ITLB_DATA_ACCESS_REG, tte.tte_data); 11980709Sjake flush(va); 12080709Sjake} 12180709Sjake 12280709Sjakestatic __inline void 12380709Sjaketlb_page_demap(u_int tlb, u_int ctx, vm_offset_t va) 12480709Sjake{ 12580709Sjake if (tlb & TLB_DTLB) 12680709Sjake tlb_dtlb_page_demap(ctx, va); 12780709Sjake if (tlb & TLB_ITLB) 12880709Sjake tlb_itlb_page_demap(ctx, va); 12980709Sjake} 13080709Sjake 13180709Sjakestatic __inline void 13280709Sjaketlb_store(u_int tlb, vm_offset_t va, struct tte tte) 13380709Sjake{ 13480709Sjake if (tlb & TLB_DTLB) 13580709Sjake tlb_dtlb_store(va, tte); 13680709Sjake if (tlb & TLB_ITLB) 13780709Sjake tlb_itlb_store(va, tte); 13880709Sjake} 13980709Sjake 14080709Sjakestatic __inline void 14180709Sjaketlb_store_slot(u_int tlb, vm_offset_t va, struct tte tte, int slot) 14280709Sjake{ 14380709Sjake if (tlb & TLB_DTLB) 14480709Sjake tlb_dtlb_store_slot(va, tte, slot); 14580709Sjake if (tlb & TLB_ITLB) 14680709Sjake tlb_itlb_store_slot(va, tte, slot); 14780709Sjake} 14880709Sjake 14980709Sjake#endif /* !_MACHINE_TLB_H_ */ 150