1/*- 2 * Copyright (c) 2001 Jake Burkholder. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
26 * $FreeBSD: head/sys/sparc64/include/tlb.h 91782 2002-03-07 05:25:15Z jake $ |
27 */ 28 29#ifndef _MACHINE_TLB_H_ 30#define _MACHINE_TLB_H_ 31 32#define TLB_SLOT_COUNT 64 33 34#define TLB_SLOT_TSB_KERNEL_MIN 62 /* XXX */ --- 64 unchanged lines hidden (view full) --- 99static __inline void 100tlb_dtlb_context_primary_demap(void) 101{ 102 stxa(TLB_DEMAP_PRIMARY | TLB_DEMAP_CONTEXT, ASI_DMMU_DEMAP, 0); 103 membar(Sync); 104} 105 106static __inline void |
107tlb_dtlb_page_demap(struct pmap *pm, vm_offset_t va) |
108{ |
109 u_int ctx; 110 111 ctx = pm->pm_context[PCPU_GET(cpuid)]; |
112 if (ctx == TLB_CTX_KERNEL) { 113 stxa(TLB_DEMAP_VA(va) | TLB_DEMAP_NUCLEUS | TLB_DEMAP_PAGE, 114 ASI_DMMU_DEMAP, 0); 115 membar(Sync); 116 } else if (ctx != -1) { 117 stxa(TLB_DEMAP_VA(va) | TLB_DEMAP_PRIMARY | TLB_DEMAP_PAGE, 118 ASI_DMMU_DEMAP, 0); 119 membar(Sync); --- 28 unchanged lines hidden (view full) --- 148static __inline void 149tlb_itlb_context_primary_demap(void) 150{ 151 stxa(TLB_DEMAP_PRIMARY | TLB_DEMAP_CONTEXT, ASI_IMMU_DEMAP, 0); 152 membar(Sync); 153} 154 155static __inline void |
156tlb_itlb_page_demap(struct pmap *pm, vm_offset_t va) |
157{ |
158 u_int ctx; 159 160 ctx = pm->pm_context[PCPU_GET(cpuid)]; |
161 if (ctx == TLB_CTX_KERNEL) { 162 stxa(TLB_DEMAP_VA(va) | TLB_DEMAP_NUCLEUS | TLB_DEMAP_PAGE, 163 ASI_IMMU_DEMAP, 0); 164 flush(KERNBASE); 165 } else if (ctx != -1) { 166 stxa(TLB_DEMAP_VA(va) | TLB_DEMAP_PRIMARY | TLB_DEMAP_PAGE, 167 ASI_IMMU_DEMAP, 0); 168 membar(Sync); --- 16 unchanged lines hidden (view full) --- 185 * user page. 186 */ 187 membar(Sync); 188 } 189 intr_restore(pst); 190} 191 192static __inline void |
193tlb_context_demap(struct pmap *pm) |
194{ |
195 u_int ctx; 196 197 ctx = pm->pm_context[PCPU_GET(cpuid)]; |
198 if (ctx != -1) { 199 tlb_dtlb_context_primary_demap(); 200 tlb_itlb_context_primary_demap(); 201 } 202} 203 204static __inline void 205tlb_itlb_store_slot(vm_offset_t va, u_long ctx, struct tte tte, int slot) 206{ 207 u_long pst; 208 209 pst = intr_disable(); 210 stxa(AA_IMMU_TAR, ASI_IMMU, TLB_TAR_VA(va) | TLB_TAR_CTX(ctx)); 211 stxa(TLB_DAR_SLOT(slot), ASI_ITLB_DATA_ACCESS_REG, tte.tte_data); 212 flush(va); 213 intr_restore(pst); 214} 215 216static __inline void |
217tlb_page_demap(u_int tlb, struct pmap *pm, vm_offset_t va) |
218{ 219 if (tlb & TLB_DTLB) |
220 tlb_dtlb_page_demap(pm, va); |
221 if (tlb & TLB_ITLB) |
222 tlb_itlb_page_demap(pm, va); |
223} 224 225static __inline void |
226tlb_range_demap(struct pmap *pm, vm_offset_t start, vm_offset_t end) |
227{ 228 for (; start < end; start += PAGE_SIZE) |
229 tlb_page_demap(TLB_DTLB | TLB_ITLB, pm, start); |
230} 231 232static __inline void |
233tlb_tte_demap(struct tte tte, struct pmap *pm) |
234{ |
235 tlb_page_demap(TD_GET_TLB(tte.tte_data), pm, TV_GET_VA(tte.tte_vpn)); |
236} 237 238static __inline void 239tlb_store(u_int tlb, vm_offset_t va, u_long ctx, struct tte tte) 240{ 241 KASSERT(ctx != -1, ("tlb_store: invalid context")); 242 if (tlb & TLB_DTLB) 243 tlb_dtlb_store(va, ctx, tte); --- 15 unchanged lines hidden --- |