17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 237c478bd9Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #ifndef _SYS_PMEM_H 287c478bd9Sstevel@tonic-gate #define _SYS_PMEM_H 297c478bd9Sstevel@tonic-gate 307c478bd9Sstevel@tonic-gate #ifdef __cplusplus 317c478bd9Sstevel@tonic-gate extern "C" { 327c478bd9Sstevel@tonic-gate #endif 337c478bd9Sstevel@tonic-gate 347c478bd9Sstevel@tonic-gate /* 357c478bd9Sstevel@tonic-gate * PMEM - Direct mapping physical memory pages to userland process 367c478bd9Sstevel@tonic-gate * 377c478bd9Sstevel@tonic-gate * Provide consolidation private functions used for directly (w/o occupying 387c478bd9Sstevel@tonic-gate * kernel virtual address space) allocating and exporting physical memory pages 397c478bd9Sstevel@tonic-gate * to userland. 407c478bd9Sstevel@tonic-gate */ 417c478bd9Sstevel@tonic-gate 427c478bd9Sstevel@tonic-gate /* 437c478bd9Sstevel@tonic-gate * Flags to pass to pmem_alloc 447c478bd9Sstevel@tonic-gate */ 457c478bd9Sstevel@tonic-gate #define PMEM_SLEEP 0x1 467c478bd9Sstevel@tonic-gate #define PMEM_NOSLEEP 0x2 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate /* 497c478bd9Sstevel@tonic-gate * Called by driver devmap routine to pass physical memory mapping info to 507c478bd9Sstevel@tonic-gate * seg_dev framework, used only for physical memory allocated from 517c478bd9Sstevel@tonic-gate * devmap_pmem_alloc(). 527c478bd9Sstevel@tonic-gate */ 537c478bd9Sstevel@tonic-gate int devmap_pmem_setup(devmap_cookie_t, dev_info_t *dip, 547c478bd9Sstevel@tonic-gate struct devmap_callback_ctl *, devmap_pmem_cookie_t, offset_t, 557c478bd9Sstevel@tonic-gate size_t, uint_t, uint_t, ddi_device_acc_attr_t *); 567c478bd9Sstevel@tonic-gate 577c478bd9Sstevel@tonic-gate /* 587c478bd9Sstevel@tonic-gate * Replace existing mapping using a new cookie, mainly gets called when doing 597c478bd9Sstevel@tonic-gate * fork(). Should be called in pertinent devmap_dup(9E). 607c478bd9Sstevel@tonic-gate */ 617c478bd9Sstevel@tonic-gate int devmap_pmem_remap(devmap_cookie_t, dev_info_t *dip, 627c478bd9Sstevel@tonic-gate devmap_pmem_cookie_t, offset_t, size_t, uint_t, uint_t, 637c478bd9Sstevel@tonic-gate ddi_device_acc_attr_t *); 647c478bd9Sstevel@tonic-gate 657c478bd9Sstevel@tonic-gate /* 667c478bd9Sstevel@tonic-gate * Directly (i.e., without occupying kernel virtual address space) allocate 677c478bd9Sstevel@tonic-gate * 'npages' physical memory pages for exporting to user land. The allocated 687c478bd9Sstevel@tonic-gate * page_t pointer will be recorded in cookie. 697c478bd9Sstevel@tonic-gate */ 707c478bd9Sstevel@tonic-gate int devmap_pmem_alloc(size_t, uint_t, devmap_pmem_cookie_t *); 717c478bd9Sstevel@tonic-gate 727c478bd9Sstevel@tonic-gate void devmap_pmem_free(devmap_pmem_cookie_t); 737c478bd9Sstevel@tonic-gate 747c478bd9Sstevel@tonic-gate int devmap_pmem_getpfns(devmap_pmem_cookie_t, uint_t, pgcnt_t, pfn_t *); 757c478bd9Sstevel@tonic-gate 767c478bd9Sstevel@tonic-gate void pmem_init(); 777c478bd9Sstevel@tonic-gate 787c478bd9Sstevel@tonic-gate #ifdef __cplusplus 797c478bd9Sstevel@tonic-gate } 807c478bd9Sstevel@tonic-gate #endif 817c478bd9Sstevel@tonic-gate 827c478bd9Sstevel@tonic-gate #endif /* _SYS_PMEM_H */ 83