tlb.h revision 81176
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 81176 2001-08-06 02:21:53Z 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) 4381176Sjake#define TLB_TAR_CTX(ctx) ((ctx) & PAGE_MASK) 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 7081176Sjake#define MMU_SFSR_ASI_SHIFT (16) 7181176Sjake#define MMU_SFSR_FT_SHIFT (7) 7281176Sjake#define MMU_SFSR_E_SHIFT (6) 7381176Sjake#define MMU_SFSR_CT_SHIFT (4) 7481176Sjake#define MMU_SFSR_PR_SHIFT (3) 7581176Sjake#define MMU_SFSR_W_SHIFT (2) 7681176Sjake#define MMU_SFSR_OW_SHIFT (1) 7781176Sjake#define MMU_SFSR_FV_SHIFT (0) 7881176Sjake 7981176Sjake#define MMU_SFSR_ASI_SIZE (8) 8081176Sjake#define MMU_SFSR_FT_SIZE (6) 8181176Sjake#define MMU_SFSR_CT_SIZE (2) 8281176Sjake 8381176Sjake#define MMU_SFSR_W (1L << MMU_SFSR_W_SHIFT) 8481176Sjake 8580709Sjakestatic __inline void 8680709Sjaketlb_dtlb_page_demap(u_int ctx, vm_offset_t va) 8780709Sjake{ 8880709Sjake if (ctx == TLB_CTX_KERNEL) { 8980709Sjake stxa(TLB_DEMAP_VA(va) | TLB_DEMAP_NUCLEUS | TLB_DEMAP_PAGE, 9080709Sjake ASI_DMMU_DEMAP, 0); 9180709Sjake membar(Sync); 9280709Sjake } else 9380709Sjake TODO; 9480709Sjake} 9580709Sjake 9680709Sjakestatic __inline void 9780709Sjaketlb_dtlb_store(vm_offset_t va, struct tte tte) 9880709Sjake{ 9981176Sjake stxa(AA_DMMU_TAR, ASI_DMMU, 10081176Sjake TLB_TAR_VA(va) | TLB_TAR_CTX(tte_get_ctx(tte))); 10180709Sjake stxa(0, ASI_DTLB_DATA_IN_REG, tte.tte_data); 10280709Sjake membar(Sync); 10380709Sjake} 10480709Sjake 10580709Sjakestatic __inline void 10680709Sjaketlb_dtlb_store_slot(vm_offset_t va, struct tte tte, int slot) 10780709Sjake{ 10880709Sjake stxa(AA_DMMU_TAR, ASI_DMMU, TLB_TAR_VA(va) | TLB_TAR_CTX(0)); 10980709Sjake stxa(TLB_DAR_SLOT(slot), ASI_DTLB_DATA_ACCESS_REG, tte.tte_data); 11080709Sjake membar(Sync); 11180709Sjake} 11280709Sjake 11380709Sjakestatic __inline void 11480709Sjaketlb_itlb_page_demap(u_int ctx, vm_offset_t va) 11580709Sjake{ 11680709Sjake if (ctx == TLB_CTX_KERNEL) { 11780709Sjake stxa(TLB_DEMAP_VA(va) | TLB_DEMAP_NUCLEUS | TLB_DEMAP_PAGE, 11880709Sjake ASI_IMMU_DEMAP, 0); 11980709Sjake flush(KERNBASE); 12080709Sjake } else 12180709Sjake TODO; 12280709Sjake} 12380709Sjake 12480709Sjakestatic __inline void 12580709Sjaketlb_itlb_store(vm_offset_t va, struct tte tte) 12680709Sjake{ 12780709Sjake TODO; 12880709Sjake} 12980709Sjake 13080709Sjakestatic __inline void 13180709Sjaketlb_itlb_store_slot(vm_offset_t va, struct tte tte, int slot) 13280709Sjake{ 13380709Sjake stxa(AA_IMMU_TAR, ASI_IMMU, TLB_TAR_VA(va) | TLB_TAR_CTX(0)); 13480709Sjake stxa(TLB_DAR_SLOT(slot), ASI_ITLB_DATA_ACCESS_REG, tte.tte_data); 13580709Sjake flush(va); 13680709Sjake} 13780709Sjake 13880709Sjakestatic __inline void 13980709Sjaketlb_page_demap(u_int tlb, u_int ctx, vm_offset_t va) 14080709Sjake{ 14180709Sjake if (tlb & TLB_DTLB) 14280709Sjake tlb_dtlb_page_demap(ctx, va); 14380709Sjake if (tlb & TLB_ITLB) 14480709Sjake tlb_itlb_page_demap(ctx, va); 14580709Sjake} 14680709Sjake 14780709Sjakestatic __inline void 14880709Sjaketlb_store(u_int tlb, vm_offset_t va, struct tte tte) 14980709Sjake{ 15080709Sjake if (tlb & TLB_DTLB) 15180709Sjake tlb_dtlb_store(va, tte); 15280709Sjake if (tlb & TLB_ITLB) 15380709Sjake tlb_itlb_store(va, tte); 15480709Sjake} 15580709Sjake 15680709Sjakestatic __inline void 15780709Sjaketlb_store_slot(u_int tlb, vm_offset_t va, struct tte tte, int slot) 15880709Sjake{ 15980709Sjake if (tlb & TLB_DTLB) 16080709Sjake tlb_dtlb_store_slot(va, tte, slot); 16180709Sjake if (tlb & TLB_ITLB) 16280709Sjake tlb_itlb_store_slot(va, tte, slot); 16380709Sjake} 16480709Sjake 16580709Sjake#endif /* !_MACHINE_TLB_H_ */ 166