X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/378393581903b274cb7a4d18e0d978071a6b592d..b7266188b87f3620ec3f9f717e57194a7dd989fe:/osfmk/device/iokit_rpc.c diff --git a/osfmk/device/iokit_rpc.c b/osfmk/device/iokit_rpc.c index c1e4c2d51..5990a3e5c 100644 --- a/osfmk/device/iokit_rpc.c +++ b/osfmk/device/iokit_rpc.c @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #include #include @@ -29,7 +35,7 @@ #include #include #include -#include +//#include #include #include /* spl definitions */ @@ -60,7 +66,7 @@ #ifdef __ppc__ #include #endif -#ifdef __i386 +#if defined(__i386__) || defined(__x86_64__) #include #endif #include @@ -88,6 +94,47 @@ iokit_client_memory_for_type( vm_address_t * address, vm_size_t * size ); + +extern ppnum_t IOGetLastPageNumber(void); + +/* + * Functions imported by iokit:IOUserClient.cpp + */ + +extern ipc_port_t iokit_alloc_object_port( io_object_t obj, + ipc_kobject_type_t type ); + +extern kern_return_t iokit_destroy_object_port( ipc_port_t port ); + +extern mach_port_name_t iokit_make_send_right( task_t task, + io_object_t obj, ipc_kobject_type_t type ); + +extern kern_return_t iokit_mod_send_right( task_t task, mach_port_name_t name, mach_port_delta_t delta ); + +extern io_object_t iokit_lookup_connect_ref(io_object_t clientRef, ipc_space_t task); + +extern io_object_t iokit_lookup_connect_ref_current_task(io_object_t clientRef); + +extern void iokit_retain_port( ipc_port_t port ); +extern void iokit_release_port( ipc_port_t port ); +extern void iokit_release_port_send( ipc_port_t port ); + +extern kern_return_t iokit_switch_object_port( ipc_port_t port, io_object_t obj, ipc_kobject_type_t type ); + +/* + * Functions imported by iokit:IOMemoryDescriptor.cpp + */ + +extern kern_return_t IOMapPages(vm_map_t map, mach_vm_address_t va, mach_vm_address_t pa, + mach_vm_size_t length, unsigned int mapFlags); + +extern kern_return_t IOUnmapPages(vm_map_t map, mach_vm_address_t va, mach_vm_size_t length); + +extern kern_return_t IOProtectCacheMode(vm_map_t map, mach_vm_address_t va, + mach_vm_size_t length, unsigned int options); + +extern unsigned int IODefaultCacheBits(addr64_t pa); + /* * Lookup a device by its port. * Doesn't consume the naked send right; produces a device reference. @@ -141,11 +188,11 @@ iokit_lookup_connect_ref(io_object_t connectRef, ipc_space_t space) { io_object_t obj = NULL; - if (connectRef && MACH_PORT_VALID((mach_port_name_t)connectRef)) { + if (connectRef && MACH_PORT_VALID(CAST_MACH_PORT_TO_NAME(connectRef))) { ipc_port_t port; kern_return_t kr; - kr = ipc_object_translate(space, (mach_port_name_t)connectRef, MACH_PORT_RIGHT_SEND, (ipc_object_t *)&port); + kr = ipc_object_translate(space, CAST_MACH_PORT_TO_NAME(connectRef), MACH_PORT_RIGHT_SEND, (ipc_object_t *)&port); if (kr == KERN_SUCCESS) { assert(IP_VALID(port)); @@ -180,6 +227,12 @@ iokit_release_port( ipc_port_t port ) ipc_port_release( port ); } +EXTERN void +iokit_release_port_send( ipc_port_t port ) +{ + ipc_port_release_send( port ); +} + /* * Get the port for a device. * Consumes a device reference; produces a naked send right. @@ -228,10 +281,6 @@ iokit_make_connect_port( return( sendPort); } - -EXTERN ipc_port_t -iokit_alloc_object_port( io_object_t obj, ipc_kobject_type_t type ); - int gIOKitPortCount; EXTERN ipc_port_t @@ -335,7 +384,7 @@ iokit_no_senders( mach_no_senders_notification_t * notification ) { ipc_port_t port; io_object_t obj = NULL; - ipc_kobject_type_t type; + ipc_kobject_type_t type = IKOT_NONE; ipc_port_t notify; port = (ipc_port_t) notification->not_header.msgh_remote_port; @@ -386,7 +435,7 @@ iokit_notify( mach_msg_header_t * msg ) case MACH_NOTIFY_SEND_ONCE: case MACH_NOTIFY_DEAD_NAME: default: - printf("iokit_notify: strange notification %ld\n", msg->msgh_id); + printf("iokit_notify: strange notification %d\n", msg->msgh_id); return FALSE; } } @@ -394,36 +443,12 @@ iokit_notify( mach_msg_header_t * msg ) /* need to create a pmap function to generalize */ unsigned int IODefaultCacheBits(addr64_t pa) { - unsigned int flags; -#ifndef i386 - struct phys_entry * pp; - - // Find physical address - if ((pp = pmap_find_physentry(pa >> 12))) { - // Use physical attributes as default - // NOTE: DEVICE_PAGER_FLAGS are made to line up - flags = VM_MEM_COHERENT; /* We only support coherent memory */ - if(pp->ppLink & ppG) flags |= VM_MEM_GUARDED; /* Add in guarded if it is */ - if(pp->ppLink & ppI) flags |= VM_MEM_NOT_CACHEABLE; /* Add in cache inhibited if so */ - } else - // If no physical, just hard code attributes - flags = VM_WIMG_IO; -#else - extern pmap_paddr_t avail_end; - - if (pa < avail_end) - flags = VM_WIMG_COPYBACK; - else - flags = VM_WIMG_IO; -#endif - - return flags; + return(pmap_cache_attributes((ppnum_t)(pa >> PAGE_SHIFT))); } -kern_return_t IOMapPages(vm_map_t map, vm_offset_t va, vm_offset_t pa, - vm_size_t length, unsigned int options) +kern_return_t IOMapPages(vm_map_t map, mach_vm_address_t va, mach_vm_address_t pa, + mach_vm_size_t length, unsigned int options) { - vm_size_t off; vm_prot_t prot; unsigned int flags; pmap_t pmap = map->pmap; @@ -446,7 +471,7 @@ kern_return_t IOMapPages(vm_map_t map, vm_offset_t va, vm_offset_t pa, flags = VM_WIMG_WTHRU; break; - case kIOWriteCombineCache: + case kIOMapWriteCombineCache: flags = VM_WIMG_WCOMB; break; @@ -454,33 +479,104 @@ kern_return_t IOMapPages(vm_map_t map, vm_offset_t va, vm_offset_t pa, flags = VM_WIMG_COPYBACK; break; } -#if __ppc__ // Set up a block mapped area - pmap_map_block(pmap, (addr64_t)va, (ppnum_t)(pa >> 12), (uint32_t)(length >> 12), prot, flags, 0); + pmap_map_block(pmap, va, (ppnum_t)atop_64(pa), (uint32_t) atop_64(round_page_64(length)), prot, flags, 0); + + return( KERN_SUCCESS ); +} +kern_return_t IOUnmapPages(vm_map_t map, mach_vm_address_t va, mach_vm_size_t length) +{ + pmap_t pmap = map->pmap; + + pmap_remove(pmap, trunc_page_64(va), round_page_64(va + length)); + + return( KERN_SUCCESS ); +} + +kern_return_t IOProtectCacheMode(vm_map_t __unused map, mach_vm_address_t __unused va, + mach_vm_size_t __unused length, unsigned int __unused options) +{ +#if __ppc__ + // can't remap block mappings, but ppc doesn't speculatively read from WC #else -// enter each page's physical address in the target map + mach_vm_size_t off; + vm_prot_t prot; + unsigned int flags; + pmap_t pmap = map->pmap; + + prot = (options & kIOMapReadOnly) + ? VM_PROT_READ : (VM_PROT_READ|VM_PROT_WRITE); + + switch (options & kIOMapCacheMask) + { + // what cache mode do we need? + case kIOMapDefaultCache: + default: + return (KERN_INVALID_ARGUMENT); + + case kIOMapInhibitCache: + flags = VM_WIMG_IO; + break; + + case kIOMapWriteThruCache: + flags = VM_WIMG_WTHRU; + break; + + case kIOMapWriteCombineCache: + flags = VM_WIMG_WCOMB; + break; + + case kIOMapCopybackCache: + flags = VM_WIMG_COPYBACK; + break; + } + + // enter each page's physical address in the target map for (off = 0; off < length; off += page_size) - pmap_enter(pmap, va + off, (pa + off) >> 12, prot, flags, TRUE); + { + ppnum_t ppnum = pmap_find_phys(pmap, va + off); + if (ppnum) + pmap_enter(pmap, va + off, ppnum, prot, flags, TRUE); + } #endif - return( KERN_SUCCESS ); + return (KERN_SUCCESS); } -kern_return_t IOUnmapPages(vm_map_t map, vm_offset_t va, vm_size_t length) +ppnum_t IOGetLastPageNumber(void) { - pmap_t pmap = map->pmap; - - pmap_remove(pmap, trunc_page_64(va), round_page_64(va + length)); + ppnum_t lastPage, highest = 0; + unsigned int idx; - return( KERN_SUCCESS ); +#if __ppc__ + for (idx = 0; idx < pmap_mem_regions_count; idx++) + { + lastPage = pmap_mem_regions[idx].mrEnd; +#elif __i386__ || __x86_64__ + for (idx = 0; idx < pmap_memory_region_count; idx++) + { + lastPage = pmap_memory_regions[idx].end - 1; +#else +#error arch +#endif + if (lastPage > highest) + highest = lastPage; + } + return (highest); } + void IOGetTime( mach_timespec_t * clock_time); void IOGetTime( mach_timespec_t * clock_time) { - clock_get_system_nanotime(&clock_time->tv_sec, &clock_time->tv_nsec); + clock_sec_t sec; + clock_nsec_t nsec; + clock_get_system_nanotime(&sec, &nsec); + clock_time->tv_sec = (typeof(clock_time->tv_sec))sec; + clock_time->tv_nsec = nsec; } +