1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/debug.h> 30 #include <sys/types.h> 31 #include <sys/param.h> 32 #include <sys/time.h> 33 #include <sys/buf.h> 34 #include <sys/errno.h> 35 #include <sys/systm.h> 36 #include <sys/conf.h> 37 #include <sys/signal.h> 38 #include <vm/page.h> 39 #include <vm/as.h> 40 #include <vm/hat.h> 41 #include <vm/seg.h> 42 #include <vm/seg_dev.h> 43 #include <vm/hat_i86.h> 44 #include <sys/ddi.h> 45 #include <sys/devops.h> 46 #include <sys/sunddi.h> 47 #include <sys/ddi_impldefs.h> 48 #include <sys/fs/snode.h> 49 #include <sys/pci.h> 50 #include <sys/vmsystm.h> 51 #include "gfx_private.h" 52 53 /* 54 * Create a dummy ddi_umem_cookie given to gfxp_devmap_umem_setup(). 55 */ 56 ddi_umem_cookie_t 57 gfxp_umem_cookie_init(caddr_t kva, size_t size) 58 { 59 struct ddi_umem_cookie *umem_cookie; 60 61 umem_cookie = kmem_zalloc(sizeof (struct ddi_umem_cookie), KM_SLEEP); 62 63 if (umem_cookie == NULL) 64 return (NULL); 65 66 umem_cookie->cvaddr = kva; 67 umem_cookie->type = KMEM_NON_PAGEABLE; 68 umem_cookie->size = size; 69 70 return ((ddi_umem_cookie_t *)umem_cookie); 71 } 72 73 void 74 gfxp_umem_cookie_destroy(ddi_umem_cookie_t cookie) 75 { 76 kmem_free(cookie, sizeof (struct ddi_umem_cookie)); 77 } 78 79 /* 80 * called by driver devmap routine to pass kernel virtual address mapping 81 * info to the framework. 82 */ 83 /*ARGSUSED*/ 84 int 85 gfxp_devmap_umem_setup(devmap_cookie_t dhc, dev_info_t *dip, 86 struct devmap_callback_ctl *callbackops, ddi_umem_cookie_t cookie, 87 offset_t off, size_t len, uint_t maxprot, uint_t flags, 88 ddi_device_acc_attr_t *accattrp) 89 { 90 uint_t l_flags = flags & ~IOMEM_DATA_MASK; /* clear cache attrs */ 91 int e; 92 93 /* 94 * Set an appropriate attribute from devacc_attr_dataorder 95 * to keep compatibility. The cache attributes are igonred 96 * if specified. 97 */ 98 if (accattrp != NULL) { 99 if (accattrp->devacc_attr_dataorder == DDI_STRICTORDER_ACC) { 100 l_flags |= IOMEM_DATA_UNCACHED; 101 } else if (accattrp->devacc_attr_dataorder == 102 DDI_MERGING_OK_ACC) { 103 l_flags |= IOMEM_DATA_UC_WR_COMBINE; 104 } else { 105 l_flags |= IOMEM_DATA_CACHED; 106 } 107 } 108 109 e = devmap_umem_setup(dhc, dip, callbackops, cookie, off, len, maxprot, 110 l_flags, accattrp); 111 return (e); 112 } 113