| 0,0 → 1,88 |
|---|
| /* |
| * 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. |
| */ |
| |
| /** @addtogroup sparc64mm |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #include <arch/mm/page.h> |
| #include <arch/mm/tlb.h> |
| #include <genarch/mm/page_ht.h> |
| #include <mm/frame.h> |
| #include <bitops.h> |
| #include <debug.h> |
| |
| void page_arch_init(void) |
| { |
| page_mapping_operations = &ht_mapping_operations; |
| } |
| |
| uintptr_t hw_map(uintptr_t physaddr, size_t size) |
| { |
| unsigned int order; |
| int i; |
| |
| struct { |
| int pagesize; |
| size_t increment; |
| count_t count; |
| } sizemap[] = { |
| { PAGESIZE_8K, 0, 1 }, /* 8K */ |
| { PAGESIZE_8K, PAGE_SIZE, 2 }, /* 16K */ |
| { PAGESIZE_8K, PAGE_SIZE, 4 }, /* 32K */ |
| { PAGESIZE_64K, 0, 1}, /* 64K */ |
| { PAGESIZE_64K, 8*PAGE_SIZE, 2 }, /* 128K */ |
| { PAGESIZE_64K, 8*PAGE_SIZE, 4 }, /* 256K */ |
| { PAGESIZE_512K, 0, 1 }, /* 512K */ |
| { PAGESIZE_512K, 64*PAGE_SIZE, 2 }, /* 1M */ |
| { PAGESIZE_512K, 64*PAGE_SIZE, 4 }, /* 2M */ |
| { PAGESIZE_4M, 0, 1 } /* 4M */ |
| }; |
| |
| ASSERT(size <= 4*1024*1024); |
| |
| if (size <= FRAME_SIZE) |
| order = 0; |
| else |
| order = (fnzb32(size - 1) + 1) - FRAME_WIDTH; |
| |
| uintptr_t virtaddr = (uintptr_t) frame_alloc(order, FRAME_KA); |
| |
| for (i = 0; i < sizemap[order].count; i++) |
| dtlb_insert_mapping(virtaddr + i*sizemap[order].increment, |
| physaddr + i*sizemap[order].increment, |
| sizemap[order].pagesize, true, false); |
| |
| return virtaddr; |
| } |
| |
| /** @} |
| */ |
| |