diff options
Diffstat (limited to 'contrib/netbsd-tests/modules/k_uvm/k_uvm.c')
-rw-r--r-- | contrib/netbsd-tests/modules/k_uvm/k_uvm.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/modules/k_uvm/k_uvm.c b/contrib/netbsd-tests/modules/k_uvm/k_uvm.c new file mode 100644 index 0000000..7f8d3b0 --- /dev/null +++ b/contrib/netbsd-tests/modules/k_uvm/k_uvm.c @@ -0,0 +1,113 @@ +/* $NetBSD: k_uvm.c,v 1.1 2012/02/17 22:36:50 jmmv Exp $ */ +/* + * Copyright (c) 2012 The NetBSD Foundation, Inc. + * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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> +__KERNEL_RCSID(0, "$NetBSD: k_uvm.c,v 1.1 2012/02/17 22:36:50 jmmv Exp $"); + +#include <sys/param.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/sysctl.h> + +MODULE(MODULE_CLASS_MISC, k_uvm, NULL); + +/* --------------------------------------------------------------------- */ +/* Sysctl interface to query information about the module. */ +/* --------------------------------------------------------------------- */ + +static struct sysctllog *clogp; +static int page_size; + +#define K_UVM 0x12345678 +#define K_UVM_VALUE 0 + +SYSCTL_SETUP(sysctl_k_uvm_setup, "sysctl k_uvm subtree setup") +{ + + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_NODE, "k_uvm", NULL, + NULL, 0, NULL, 0, + CTL_VENDOR, K_UVM, CTL_EOL); + + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_INT, "page_size", + SYSCTL_DESCR("Value of PAGE_SIZE"), + NULL, 0, &page_size, 0, + CTL_VENDOR, K_UVM, K_UVM_VALUE, CTL_EOL); +} + +/* --------------------------------------------------------------------- */ +/* Module management. */ +/* --------------------------------------------------------------------- */ + +static +int +k_uvm_init(prop_dictionary_t props) +{ + + page_size = PAGE_SIZE; + + sysctl_k_uvm_setup(&clogp); + + return 0; +} + +static +int +k_uvm_fini(void *arg) +{ + + sysctl_teardown(&clogp); + + return 0; +} + +static +int +k_uvm_modcmd(modcmd_t cmd, void *arg) +{ + int ret; + + switch (cmd) { + case MODULE_CMD_INIT: + ret = k_uvm_init(arg); + break; + + case MODULE_CMD_FINI: + ret = k_uvm_fini(arg); + break; + + case MODULE_CMD_STAT: + default: + ret = ENOTTY; + } + + return ret; +} |