| 0,0 → 1,117 |
|---|
| /* |
| * Copyright (C) 2005 Jakub Jermar |
| * 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. |
| */ |
| |
| #include <arch/mm/tlb.h> |
| #include <mm/tlb.h> |
| #include <print.h> |
| #include <arch/types.h> |
| #include <typedefs.h> |
| |
| void tlb_arch_init(void) |
| { |
| } |
| |
| /** Print contents of both TLBs. */ |
| void tlb_print(void) |
| { |
| int i; |
| tlb_data_t d; |
| tlb_tag_read_reg_t t; |
| |
| printf("I-TLB contents:\n"); |
| for (i = 0; i < ITLB_ENTRY_COUNT; i++) { |
| d.value = itlb_data_access_read(i); |
| t.value = itlb_tag_read_read(i); |
| |
| printf("%d: vpn=%Q, context=%d, v=%d, size=%d, nfo=%d, ie=%d, soft2=%X, diag=%X, pfn=%X, soft=%X, l=%d, cp=%d, cv=%d, e=%d, p=%d, w=%d, g=%d\n", |
| i, t.vpn, t.context, d.v, d.size, d.nfo, d.ie, d.soft2, d.diag, d.pfn, d.soft, d.l, d.cp, d.cv, d.e, d.p, d.w, d.g); |
| } |
| |
| printf("D-TLB contents:\n"); |
| for (i = 0; i < DTLB_ENTRY_COUNT; i++) { |
| d.value = dtlb_data_access_read(i); |
| t.value = dtlb_tag_read_read(i); |
| |
| printf("%d: vpn=%Q, context=%d, v=%d, size=%d, nfo=%d, ie=%d, soft2=%X, diag=%X, pfn=%X, soft=%X, l=%d, cp=%d, cv=%d, e=%d, p=%d, w=%d, g=%d\n", |
| i, t.vpn, t.context, d.v, d.size, d.nfo, d.ie, d.soft2, d.diag, d.pfn, d.soft, d.l, d.cp, d.cv, d.e, d.p, d.w, d.g); |
| } |
| |
| } |
| |
| /** Invalidate all unlocked ITLB and DTLB entries. */ |
| void tlb_invalidate_all(void) |
| { |
| int i; |
| tlb_data_t d; |
| tlb_tag_read_reg_t t; |
| |
| for (i = 0; i < ITLB_ENTRY_COUNT; i++) { |
| d.value = itlb_data_access_read(i); |
| if (!d.l) { |
| printf("invalidating "); |
| t.value = itlb_tag_read_read(i); |
| d.v = false; |
| itlb_tag_access_write(t.value); |
| itlb_data_access_write(i, d.value); |
| } |
| } |
| |
| for (i = 0; i < DTLB_ENTRY_COUNT; i++) { |
| d.value = dtlb_data_access_read(i); |
| if (!d.l) { |
| t.value = dtlb_tag_read_read(i); |
| d.v = false; |
| dtlb_tag_access_write(t.value); |
| dtlb_data_access_write(i, d.value); |
| } |
| } |
| |
| } |
| |
| /** Invalidate all ITLB and DTLB entries that belong to specified ASID (Context). |
| * |
| * @param asid Address Space ID. |
| */ |
| void tlb_invalidate_asid(asid_t asid) |
| { |
| /* TODO: write asid to some Context register and encode the register in second parameter below. */ |
| itlb_demap(TLB_DEMAP_CONTEXT, TLB_DEMAP_NUCLEUS, 0); |
| dtlb_demap(TLB_DEMAP_CONTEXT, TLB_DEMAP_NUCLEUS, 0); |
| } |
| |
| /** Invalidate all ITLB and DLTB entries for specified page in specified address space. |
| * |
| * @param asid Address Space ID. |
| * @param page Page which to sweep out from ITLB and DTLB. |
| */ |
| void tlb_invalidate_page(asid_t asid, __address page) |
| { |
| /* TODO: write asid to some Context register and encode the register in second parameter below. */ |
| itlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, page); |
| dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, page); |
| } |