xnu-1504.3.12.tar.gz

[apple/xnu.git] / osfmk / device / iokit_rpc.c

diff --git a/osfmk/device/iokit_rpc.c b/osfmk/device/iokit_rpc.c
index c1e4c2d519405d04bb9385cf6980b64f5c5ab78f..5990a3e5c8a79527b5cf1e8a34cf19603212d425 100644 (file)
--- 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,
  * 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 <mach_kdb.h>
 #include <zone_debug.h>
  */
 #include <mach_kdb.h>
 #include <zone_debug.h>


@@ -29,7 +35,7 @@
 #include <mach/port.h>
 #include <mach/vm_param.h>
 #include <mach/notify.h>
 #include <mach/port.h>
 #include <mach/vm_param.h>
 #include <mach/notify.h>

-#include <mach/mach_host_server.h>
+//#include <mach/mach_host_server.h>

 #include <mach/mach_types.h>
 
 #include <machine/machparam.h>         /* spl definitions */
 #include <mach/mach_types.h>
 
 #include <machine/machparam.h>         /* spl definitions */


@@ -60,7 +66,7 @@
 #ifdef __ppc__
 #include <ppc/mappings.h>
 #endif
 #ifdef __ppc__
 #include <ppc/mappings.h>
 #endif

-#ifdef __i386
+#if defined(__i386__) || defined(__x86_64__)

 #include <i386/pmap.h>
 #endif
 #include <IOKit/IOTypes.h>
 #include <i386/pmap.h>
 #endif
 #include <IOKit/IOTypes.h>


@@ -88,6 +94,47 @@ iokit_client_memory_for_type(
        vm_address_t *  address,
        vm_size_t    *  size );
 
        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.
 /*
  * 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;
 
 {
        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;
 
                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));
 
                if (kr == KERN_SUCCESS) {
             assert(IP_VALID(port));


@@ -180,6 +227,12 @@ iokit_release_port( ipc_port_t port )
     ipc_port_release( 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.
 /*
  * 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);
 }
 
     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
 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_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;
     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:
         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;
     }
 }
             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)
 {
 /* 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;
     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;
 
            flags = VM_WIMG_WTHRU;
            break;
 

-       case kIOWriteCombineCache:
+       case kIOMapWriteCombineCache:

            flags = VM_WIMG_WCOMB;
            break;
 
            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;
     }
            flags = VM_WIMG_COPYBACK;
            break;
     }

-#if __ppc__

 
     // Set up a block mapped area
 
     // 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
 #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)
     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
 
 
 #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)
 {
 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;

 }
 }

+