diff options
Diffstat (limited to 'sys/amd64/amd64/uma_machdep.c')
| -rw-r--r-- | sys/amd64/amd64/uma_machdep.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/sys/amd64/amd64/uma_machdep.c b/sys/amd64/amd64/uma_machdep.c new file mode 100644 index 000000000000..68cdaf887fb9 --- /dev/null +++ b/sys/amd64/amd64/uma_machdep.c @@ -0,0 +1,79 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2003 Alan L. Cox <alc@cs.rice.edu> + * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 <sys/param.h> +#include <sys/lock.h> +#include <sys/malloc.h> +#include <sys/mutex.h> +#include <sys/systm.h> +#include <sys/vmmeter.h> +#include <vm/vm.h> +#include <vm/vm_page.h> +#include <vm/vm_pageout.h> +#include <vm/uma.h> +#include <vm/uma_int.h> +#include <machine/md_var.h> +#include <machine/vmparam.h> + +void * +uma_small_alloc(uma_zone_t zone, vm_size_t bytes, int domain, u_int8_t *flags, + int wait) +{ + vm_page_t m; + vm_paddr_t pa; + void *va; + + *flags = UMA_SLAB_PRIV; + m = vm_page_alloc_domain(NULL, 0, domain, + malloc2vm_flags(wait) | VM_ALLOC_NOOBJ | VM_ALLOC_WIRED); + if (m == NULL) + return (NULL); + pa = m->phys_addr; + if ((wait & M_NODUMP) == 0) + dump_add_page(pa); + va = (void *)PHYS_TO_DMAP(pa); + if ((wait & M_ZERO) && (m->flags & PG_ZERO) == 0) + pagezero(va); + return (va); +} + +void +uma_small_free(void *mem, vm_size_t size, u_int8_t flags) +{ + vm_page_t m; + vm_paddr_t pa; + + pa = DMAP_TO_PHYS((vm_offset_t)mem); + dump_drop_page(pa); + m = PHYS_TO_VM_PAGE(pa); + vm_page_unwire_noq(m); + vm_page_free(m); +} |