diff options
Diffstat (limited to 'sys/boot/ia64/common/copy.c')
| -rw-r--r-- | sys/boot/ia64/common/copy.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/sys/boot/ia64/common/copy.c b/sys/boot/ia64/common/copy.c deleted file mode 100644 index b14386e..0000000 --- a/sys/boot/ia64/common/copy.c +++ /dev/null @@ -1,217 +0,0 @@ -/*- - * Copyright (c) 2006 Marcel Moolenaar - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * - * 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 <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <stand.h> -#include <machine/param.h> -#include <machine/pte.h> - -#include "libia64.h" - -u_int ia64_legacy_kernel; - -uint64_t *ia64_pgtbl; -uint32_t ia64_pgtblsz; - -static int -pgtbl_extend(u_int idx) -{ - vm_paddr_t pa; - uint64_t *pgtbl; - uint32_t pgtblsz; - u_int pot; - - pgtblsz = (idx + 1) << 3; - - /* The minimum size is 4KB. */ - if (pgtblsz < 4096) - pgtblsz = 4096; - - /* Find the next higher power of 2. */ - pgtblsz--; - for (pot = 1; pot < 32; pot <<= 1) - pgtblsz = pgtblsz | (pgtblsz >> pot); - pgtblsz++; - - /* The maximum size is 1MB. */ - if (pgtblsz > 1048576) - return (ENOMEM); - - /* Make sure the size is a valid (mappable) page size. */ - if (pgtblsz == 32*1024 || pgtblsz == 128*1024 || pgtblsz == 512*1024) - pgtblsz <<= 1; - - /* Allocate naturally aligned memory. */ - pa = ia64_platform_alloc(0, pgtblsz); - if (pa == ~0UL) - return (ENOMEM); - pgtbl = (void *)pa; - - /* Initialize new page table. */ - if (ia64_pgtbl != NULL && ia64_pgtbl != pgtbl) - bcopy(ia64_pgtbl, pgtbl, ia64_pgtblsz); - bzero(pgtbl + (ia64_pgtblsz >> 3), pgtblsz - ia64_pgtblsz); - - if (ia64_pgtbl != NULL && ia64_pgtbl != pgtbl) - ia64_platform_free(0, (uintptr_t)ia64_pgtbl, ia64_pgtblsz); - - ia64_pgtbl = pgtbl; - ia64_pgtblsz = pgtblsz; - return (0); -} - -void * -ia64_va2pa(vm_offset_t va, size_t *len) -{ - uint64_t pa, pte; - u_int idx, ofs; - int error; - - /* Backward compatibility. */ - if (va >= IA64_RR_BASE(7)) { - ia64_legacy_kernel = 1; - pa = IA64_RR_MASK(va); - return ((void *)pa); - } - - if (va < IA64_PBVM_BASE) { - error = EINVAL; - goto fail; - } - - ia64_legacy_kernel = 0; - - idx = (va - IA64_PBVM_BASE) >> IA64_PBVM_PAGE_SHIFT; - if (idx >= (ia64_pgtblsz >> 3)) { - error = pgtbl_extend(idx); - if (error) - goto fail; - } - - ofs = va & IA64_PBVM_PAGE_MASK; - pte = ia64_pgtbl[idx]; - if ((pte & PTE_PRESENT) == 0) { - pa = ia64_platform_alloc(va - ofs, IA64_PBVM_PAGE_SIZE); - if (pa == ~0UL) { - error = ENOMEM; - goto fail; - } - pte = PTE_AR_RWX | PTE_DIRTY | PTE_ACCESSED | PTE_PRESENT; - pte |= (pa & PTE_PPN_MASK); - ia64_pgtbl[idx] = pte; - } - pa = (pte & PTE_PPN_MASK) + ofs; - - /* We can not cross page boundaries (in general). */ - if (*len + ofs > IA64_PBVM_PAGE_SIZE) - *len = IA64_PBVM_PAGE_SIZE - ofs; - - return ((void *)pa); - - fail: - *len = 0; - return (NULL); -} - -ssize_t -ia64_copyin(const void *src, vm_offset_t va, size_t len) -{ - void *pa; - ssize_t res; - size_t sz; - - res = 0; - while (len > 0) { - sz = len; - pa = ia64_va2pa(va, &sz); - if (sz == 0) - break; - bcopy(src, pa, sz); - len -= sz; - res += sz; - va += sz; - } - return (res); -} - -ssize_t -ia64_copyout(vm_offset_t va, void *dst, size_t len) -{ - void *pa; - ssize_t res; - size_t sz; - - res = 0; - while (len > 0) { - sz = len; - pa = ia64_va2pa(va, &sz); - if (sz == 0) - break; - bcopy(pa, dst, sz); - len -= sz; - res += sz; - va += sz; - } - return (res); -} - -uint64_t -ia64_loadaddr(u_int type, void *data, uint64_t addr) -{ - uint64_t align; - - /* - * Align ELF objects at PBVM page boundaries. Align all other - * objects at cache line boundaries for good measure. - */ - align = (type == LOAD_ELF) ? IA64_PBVM_PAGE_SIZE : CACHE_LINE_SIZE; - return ((addr + align - 1) & ~(align - 1)); -} - -ssize_t -ia64_readin(int fd, vm_offset_t va, size_t len) -{ - void *pa; - ssize_t res, s; - size_t sz; - - res = 0; - while (len > 0) { - sz = len; - pa = ia64_va2pa(va, &sz); - if (sz == 0) - break; - s = read(fd, pa, sz); - if (s <= 0) - break; - len -= s; - res += s; - va += s; - } - return (res); -} |
