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Index: sys/conf/files
===================================================================
--- sys/conf/files
+++ sys/conf/files
@@ -1814,6 +1814,7 @@
dev/hptiop/hptiop.c optional hptiop scbus
dev/hwpmc/hwpmc_logging.c optional hwpmc
dev/hwpmc/hwpmc_mod.c optional hwpmc
+dev/hwpmc/hwpmc_vm.c optional hwpmc
dev/hwpmc/hwpmc_soft.c optional hwpmc
dev/ichiic/ig4_acpi.c optional ig4 acpi iicbus
dev/ichiic/ig4_iic.c optional ig4 iicbus
Index: sys/dev/hwpmc/hwpmc_vm.h
===================================================================
--- /dev/null
+++ sys/dev/hwpmc/hwpmc_vm.h
@@ -0,0 +1,53 @@
+/*-
+ * Copyright (c) 2017 Ruslan Bukin <br@bsdpad.com>
+ * All rights reserved.
+ *
+ * This software was developed by BAE Systems, the University of Cambridge
+ * Computer Laboratory, and Memorial University under DARPA/AFRL contract
+ * FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing
+ * (TC) research program.
+ *
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _DEV_HWPMC_VM_H_
+#define _DEV_HWPMC_VM_H_
+
+int pmc_vm_initialize(struct pmc_mdep *md);
+int pmc_vm_finalize(void);
+
+struct pmc_vm_map {
+ struct thread *t;
+ vm_object_t obj;
+ void * buf;
+};
+
+struct cdev_cpu {
+ struct pmc_mdep *md;
+ struct mtx vm_mtx;
+ uint32_t cpu;
+ int osd_id;
+};
+
+#endif /* !_DEV_HWPMC_VM_H_ */
Index: sys/dev/hwpmc/hwpmc_vm.c
===================================================================
--- /dev/null
+++ sys/dev/hwpmc/hwpmc_vm.c
@@ -0,0 +1,159 @@
+/*-
+ * Copyright (c) 2017 Ruslan Bukin <br@bsdpad.com>
+ * All rights reserved.
+ *
+ * This software was developed by BAE Systems, the University of Cambridge
+ * Computer Laboratory, and Memorial University under DARPA/AFRL contract
+ * FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing
+ * (TC) research program.
+ *
+ * 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/pmckern.h>
+#include <sys/conf.h>
+#include <sys/malloc.h>
+#include <sys/mman.h>
+#include <sys/mutex.h>
+#include <sys/rwlock.h>
+#include <sys/smp.h>
+#include <sys/osd.h>
+
+#include <vm/vm.h>
+#include <vm/pmap.h>
+#include <vm/vm_object.h>
+#include <vm/vm_page.h>
+#include <vm/vm_pager.h>
+
+#define PMC_VM_DEBUG
+#undef PMC_VM_DEBUG
+
+#ifdef PMC_VM_DEBUG
+#define dprintf(fmt, ...) printf(fmt, ##__VA_ARGS__)
+#else
+#define dprintf(fmt, ...)
+#endif
+
+#include "hwpmc_vm.h"
+
+struct cdev *pmc_cdev[MAXCPU];
+
+static int
+pmc_mmap_single(struct cdev *cdev, vm_ooffset_t *offset,
+ vm_size_t mapsize, struct vm_object **objp, int nprot)
+{
+ struct pmc_vm_map *map;
+ struct cdev_cpu *cc;
+
+ cc = cdev->si_drv1;
+
+ if (nprot != PROT_READ || *offset != 0)
+ return (ENXIO);
+
+ mtx_lock(&cc->vm_mtx);
+ map = osd_thread_get(curthread, cc->osd_id);
+ if (map) {
+ vm_object_reference(map->obj);
+ *objp = map->obj;
+ mtx_unlock(&cc->vm_mtx);
+ return (0);
+ }
+ mtx_unlock(&cc->vm_mtx);
+
+ return (ENXIO);
+}
+
+static struct cdevsw pmc_cdevsw = {
+ .d_version = D_VERSION,
+ .d_mmap_single = pmc_mmap_single,
+ .d_name = "HWPMC",
+};
+
+int
+pmc_vm_initialize(struct pmc_mdep *md)
+{
+ struct make_dev_args args;
+ struct cdev_cpu *cc_all;
+ struct cdev_cpu *cc;
+ int error;
+ int cpu;
+ int i;
+
+ cc_all = malloc(sizeof(struct cdev_cpu) * (mp_maxid + 1),
+ M_PMC, M_WAITOK | M_ZERO);
+
+ CPU_FOREACH(cpu) {
+ cc = &cc_all[cpu];
+ cc->cpu = cpu;
+ cc->md = md;
+ cc->osd_id = osd_thread_register(NULL);
+
+ mtx_init(&cc->vm_mtx, "PMC VM", NULL, MTX_DEF);
+
+ /* Register the device */
+ make_dev_args_init(&args);
+ args.mda_devsw = &pmc_cdevsw;
+ args.mda_unit = cpu;
+ args.mda_uid = UID_ROOT;
+ args.mda_gid = GID_WHEEL;
+ args.mda_mode = 0444;
+ args.mda_si_drv1 = cc;
+ error = make_dev_s(&args, &pmc_cdev[cpu], "pmc%d", cpu);
+ if (error != 0) {
+ for (i = 0; i < cpu; i++) {
+ cc = &cc_all[i];
+ mtx_destroy(&cc->vm_mtx);
+ destroy_dev(pmc_cdev[i]);
+ osd_thread_deregister(cc->osd_id);
+ }
+ free(cc_all, M_PMC);
+ return (-1);
+ }
+ }
+
+ return (0);
+}
+
+int
+pmc_vm_finalize(void)
+{
+ struct cdev_cpu *cc_all;
+ struct cdev_cpu *cc;
+ int cpu;
+
+ cc_all = pmc_cdev[0]->si_drv1;
+
+ CPU_FOREACH(cpu) {
+ cc = &cc_all[cpu];
+ mtx_destroy(&cc->vm_mtx);
+ destroy_dev(pmc_cdev[cpu]);
+ osd_thread_deregister(cc->osd_id);
+ }
+
+ free(cc_all, M_PMC);
+
+ return (0);
+}
Index: sys/modules/hwpmc/Makefile
===================================================================
--- sys/modules/hwpmc/Makefile
+++ sys/modules/hwpmc/Makefile
@@ -6,14 +6,16 @@
KMOD= hwpmc
-SRCS= hwpmc_mod.c hwpmc_logging.c hwpmc_soft.c vnode_if.h
+SRCS= hwpmc_mod.c hwpmc_logging.c hwpmc_soft.c hwpmc_vm.c vnode_if.h
.if ${MACHINE_CPUARCH} == "aarch64"
SRCS+= hwpmc_arm64.c hwpmc_arm64_md.c
+SRCS+= hwpmc_cs.c
.endif
.if ${MACHINE_CPUARCH} == "amd64"
SRCS+= hwpmc_amd.c hwpmc_core.c hwpmc_intel.c hwpmc_tsc.c
+SRCS+= hwpmc_pt.c
SRCS+= hwpmc_x86.c hwpmc_uncore.c
SRCS+= device_if.h bus_if.h
.endif

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