/*
- * Copyright (c) 1998-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2004 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_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 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.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * 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.
+ *
+ * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
*/
/*
* HISTORY
#include <IOKit/IOReturn.h>
#include <IOKit/IOLib.h>
+#include <IOKit/IOLocks.h>
+#include <IOKit/IOMapper.h>
#include <IOKit/IOKitDebug.h>
+#include "IOKitKernelInternal.h"
+
mach_timespec_t IOZeroTvalspec = { 0, 0 };
+extern ppnum_t pmap_find_phys(pmap_t pmap, addr64_t va);
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+lck_grp_t *IOLockGroup;
/*
* Global variables for use by iLogger
* Static variables for this module.
*/
-static IOThreadFunc threadArgFcn;
-static void * threadArgArg;
-static lock_t * threadArgLock;
-
+static queue_head_t gIOMallocContiguousEntries;
+static lck_mtx_t * gIOMallocContiguousEntriesLock;
enum { kIOMaxPageableMaps = 16 };
-enum { kIOPageableMapSize = 16 * 1024 * 1024 };
-enum { kIOPageableMaxMapSize = 64 * 1024 * 1024 };
+enum { kIOPageableMapSize = 96 * 1024 * 1024 };
+enum { kIOPageableMaxMapSize = 96 * 1024 * 1024 };
+/* LP64todo - these need to expand */
typedef struct {
vm_map_t map;
vm_offset_t address;
UInt32 count;
UInt32 hint;
IOMapData maps[ kIOMaxPageableMaps ];
- mutex_t * lock;
+ lck_mtx_t * lock;
} gIOKitPageableSpace;
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void IOLibInit(void)
{
if(libInitialized)
return;
- threadArgLock = lock_alloc( true, NULL, NULL );
-
gIOKitPageableSpace.maps[0].address = 0;
ret = kmem_suballoc(kernel_map,
&gIOKitPageableSpace.maps[0].address,
kIOPageableMapSize,
TRUE,
- TRUE,
+ VM_FLAGS_ANYWHERE,
&gIOKitPageableSpace.maps[0].map);
if (ret != KERN_SUCCESS)
panic("failed to allocate iokit pageable map\n");
- gIOKitPageableSpace.lock = mutex_alloc( 0 );
+ IOLockGroup = lck_grp_alloc_init("IOKit", LCK_GRP_ATTR_NULL);
+
+ gIOKitPageableSpace.lock = lck_mtx_alloc_init(IOLockGroup, LCK_ATTR_NULL);
gIOKitPageableSpace.maps[0].end = gIOKitPageableSpace.maps[0].address + kIOPageableMapSize;
gIOKitPageableSpace.hint = 0;
gIOKitPageableSpace.count = 1;
+ gIOMallocContiguousEntriesLock = lck_mtx_alloc_init(IOLockGroup, LCK_ATTR_NULL);
+ queue_init( &gIOMallocContiguousEntries );
+
libInitialized = true;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-/*
- * We pass an argument to a new thread by saving fcn and arg in some
- * locked variables and starting the thread at ioThreadStart(). This
- * function retrives fcn and arg and makes the appropriate call.
- *
- */
-
-static void ioThreadStart( void )
-{
- IOThreadFunc fcn;
- void * arg;
-
- fcn = threadArgFcn;
- arg = threadArgArg;
- lock_done( threadArgLock);
-
- (*fcn)(arg);
-
- IOExitThread();
-}
-
IOThread IOCreateThread(IOThreadFunc fcn, void *arg)
{
- IOThread thread;
+ kern_return_t result;
+ thread_t thread;
- lock_write( threadArgLock);
- threadArgFcn = fcn;
- threadArgArg = arg;
+ result = kernel_thread_start((thread_continue_t)fcn, arg, &thread);
+ if (result != KERN_SUCCESS)
+ return (NULL);
- thread = kernel_thread( kernel_task, ioThreadStart);
+ thread_deallocate(thread);
- return(thread);
+ return (thread);
}
-volatile void IOExitThread()
+volatile void IOExitThread(void)
{
- (void) thread_terminate(current_act());
+ (void) thread_terminate(current_thread());
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void IOFree(void * address, vm_size_t size)
{
if (address) {
- kfree((vm_offset_t)address, size);
+ kfree(address, size);
#if IOALLOCDEBUG
debug_iomalloc_size -= size;
#endif
- sizeof(vm_address_t) ));
if (adjustedSize >= page_size)
- kmem_free( kernel_map, (vm_address_t) allocationAddress, adjustedSize);
+ kmem_free( kernel_map, allocationAddress, adjustedSize);
else
- kfree((vm_offset_t) allocationAddress, adjustedSize);
+ kfree((void *)allocationAddress, adjustedSize);
}
#if IOALLOCDEBUG
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+struct _IOMallocContiguousEntry
+{
+ void * virtual;
+ ppnum_t ioBase;
+ queue_chain_t link;
+};
+typedef struct _IOMallocContiguousEntry _IOMallocContiguousEntry;
+
void * IOMallocContiguous(vm_size_t size, vm_size_t alignment,
IOPhysicalAddress * physicalAddress)
{
vm_address_t allocationAddress;
vm_size_t adjustedSize;
vm_offset_t alignMask;
+ ppnum_t pagenum;
if (size == 0)
return 0;
alignMask = alignment - 1;
adjustedSize = (2 * size) + sizeof(vm_size_t) + sizeof(vm_address_t);
- if (adjustedSize >= page_size) {
-
- kr = kmem_alloc_contig(kernel_map, &address, size,
- alignMask, 0);
+ if (adjustedSize >= page_size)
+ {
+ adjustedSize = size;
+ if (adjustedSize > page_size)
+ {
+ kr = kmem_alloc_contig(kernel_map, &address, size,
+ alignMask, 0);
+ }
+ else
+ {
+ kr = kernel_memory_allocate(kernel_map, &address,
+ size, alignMask, 0);
+ }
if (KERN_SUCCESS != kr)
address = 0;
-
- } else {
-
+ }
+ else
+ {
adjustedSize += alignMask;
allocationAddress = (vm_address_t) kalloc(adjustedSize);
+ (sizeof(vm_size_t) + sizeof(vm_address_t)))
& (~alignMask);
- if (atop(address) != atop(address + size - 1))
- address = round_page(address);
+ if (atop_32(address) != atop_32(address + size - 1))
+ address = round_page_32(address);
*((vm_size_t *)(address - sizeof(vm_size_t)
- sizeof(vm_address_t))) = adjustedSize;
address = 0;
}
- if( address && physicalAddress)
- *physicalAddress = (IOPhysicalAddress) pmap_extract( kernel_pmap,
- address );
+ /* Do we want a physical address? */
+ if (address && physicalAddress)
+ {
+ do
+ {
+ /* Get the physical page */
+ pagenum = pmap_find_phys(kernel_pmap, (addr64_t) address);
+ if(pagenum)
+ {
+ IOByteCount offset;
+ ppnum_t base;
+
+ base = IOMapperIOVMAlloc((size + PAGE_MASK) >> PAGE_SHIFT);
+ if (base)
+ {
+ _IOMallocContiguousEntry *
+ entry = IONew(_IOMallocContiguousEntry, 1);
+ if (!entry)
+ {
+ IOFreeContiguous((void *) address, size);
+ address = 0;
+ break;
+ }
+ entry->virtual = (void *) address;
+ entry->ioBase = base;
+ lck_mtx_lock(gIOMallocContiguousEntriesLock);
+ queue_enter( &gIOMallocContiguousEntries, entry,
+ _IOMallocContiguousEntry *, link );
+ lck_mtx_unlock(gIOMallocContiguousEntriesLock);
+
+ *physicalAddress = (IOPhysicalAddress)((base << PAGE_SHIFT) | (address & PAGE_MASK));
+ for (offset = 0; offset < ((size + PAGE_MASK) >> PAGE_SHIFT); offset++, pagenum++)
+ IOMapperInsertPage( base, offset, pagenum );
+ }
+ else
+ *physicalAddress = (IOPhysicalAddress)((pagenum << PAGE_SHIFT) | (address & PAGE_MASK));
+ }
+ else
+ /* Did not find, return 0 */
+ *physicalAddress = (IOPhysicalAddress) 0;
+ }
+ while (false);
+ }
assert(0 == (address & alignMask));
void IOFreeContiguous(void * address, vm_size_t size)
{
- vm_address_t allocationAddress;
- vm_size_t adjustedSize;
+ vm_address_t allocationAddress;
+ vm_size_t adjustedSize;
+ _IOMallocContiguousEntry * entry;
+ ppnum_t base = 0;
if( !address)
return;
assert(size);
+ lck_mtx_lock(gIOMallocContiguousEntriesLock);
+ queue_iterate( &gIOMallocContiguousEntries, entry,
+ _IOMallocContiguousEntry *, link )
+ {
+ if( entry->virtual == address ) {
+ base = entry->ioBase;
+ queue_remove( &gIOMallocContiguousEntries, entry,
+ _IOMallocContiguousEntry *, link );
+ break;
+ }
+ }
+ lck_mtx_unlock(gIOMallocContiguousEntriesLock);
+
+ if (base)
+ {
+ IOMapperIOVMFree(base, (size + PAGE_MASK) >> PAGE_SHIFT);
+ IODelete(entry, _IOMallocContiguousEntry, 1);
+ }
+
adjustedSize = (2 * size) + sizeof(vm_size_t) + sizeof(vm_address_t);
if (adjustedSize >= page_size) {
allocationAddress = *((vm_address_t *)( (vm_address_t) address
- sizeof(vm_address_t) ));
- kfree((vm_offset_t) allocationAddress, adjustedSize);
+ kfree((void *)allocationAddress, adjustedSize);
}
#if IOALLOCDEBUG
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-typedef kern_return_t (*IOIteratePageableMapsCallback)(vm_map_t map, void * ref);
-
kern_return_t IOIteratePageableMaps(vm_size_t size,
IOIteratePageableMapsCallback callback, void * ref)
{
if( KERN_SUCCESS == kr)
break;
- mutex_lock( gIOKitPageableSpace.lock );
+ lck_mtx_lock( gIOKitPageableSpace.lock );
index = gIOKitPageableSpace.count;
if( index >= (kIOMaxPageableMaps - 1)) {
- mutex_unlock( gIOKitPageableSpace.lock );
+ lck_mtx_unlock( gIOKitPageableSpace.lock );
break;
}
&min,
segSize,
TRUE,
- TRUE,
+ VM_FLAGS_ANYWHERE,
&map);
if( KERN_SUCCESS != kr) {
- mutex_unlock( gIOKitPageableSpace.lock );
+ lck_mtx_unlock( gIOKitPageableSpace.lock );
break;
}
gIOKitPageableSpace.hint = index;
gIOKitPageableSpace.count = index + 1;
- mutex_unlock( gIOKitPageableSpace.lock );
+ lck_mtx_unlock( gIOKitPageableSpace.lock );
} while( true );
#if IOALLOCDEBUG
if( ref.address)
- debug_iomalloc_size += round_page(size);
+ debug_iomallocpageable_size += round_page_32(size);
#endif
return( (void *) ref.address );
kmem_free( map, (vm_offset_t) address, size);
#if IOALLOCDEBUG
- debug_iomalloc_size -= round_page(size);
+ debug_iomallocpageable_size -= round_page_32(size);
#endif
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-extern kern_return_t IOMapPages(vm_map_t map, vm_offset_t va, vm_offset_t pa,
- vm_size_t length, unsigned int options);
-
IOReturn IOSetProcessorCacheMode( task_t task, IOVirtualAddress address,
IOByteCount length, IOOptionBits cacheMode )
{
IOReturn ret = kIOReturnSuccess;
- vm_offset_t physAddr;
+ ppnum_t pagenum;
if( task != kernel_task)
return( kIOReturnUnsupported );
- length = round_page(address + length) - trunc_page( address );
- address = trunc_page( address );
+ length = round_page_32(address + length) - trunc_page_32( address );
+ address = trunc_page_32( address );
// make map mode
cacheMode = (cacheMode << kIOMapCacheShift) & kIOMapCacheMask;
while( (kIOReturnSuccess == ret) && (length > 0) ) {
- physAddr = pmap_extract( kernel_pmap, address );
- if( physAddr)
- ret = IOMapPages( get_task_map(task), address, physAddr, page_size, cacheMode );
- else
+ // Get the physical page number
+ pagenum = pmap_find_phys(kernel_pmap, (addr64_t)address);
+ if( pagenum) {
+ ret = IOUnmapPages( get_task_map(task), address, page_size );
+ ret = IOMapPages( get_task_map(task), address, pagenum << PAGE_SHIFT, page_size, cacheMode );
+ } else
ret = kIOReturnVMError;
+ address += page_size;
length -= page_size;
}
return( kIOReturnUnsupported );
#if __ppc__
- flush_dcache( (vm_offset_t) address, (unsigned) length, false );
+ flush_dcache64( (addr64_t) address, (unsigned) length, false );
#endif
return( kIOReturnSuccess );
void IOSleep(unsigned milliseconds)
{
- wait_result_t wait_result;
-
- wait_result = assert_wait_timeout(milliseconds, THREAD_UNINT);
- assert(wait_result == THREAD_WAITING);
-
- wait_result = thread_block(THREAD_CONTINUE_NULL);
- assert(wait_result == THREAD_TIMED_OUT);
+ delay_for_interval(milliseconds, kMillisecondScale);
}
/*
*/
void IODelay(unsigned microseconds)
{
- extern void delay(int usec);
-
- delay(microseconds);
+ delay_for_interval(microseconds, kMicrosecondScale);
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
{
va_list ap;
extern void conslog_putc(char);
- extern void logwakeup();
+ extern void logwakeup(void);
va_start(ap, format);
_doprnt(format, &ap, conslog_putc, 16);
}
return size;
}
-
-IOReturn IONDRVLibrariesInitialize( void )
-{
- return( kIOReturnUnsupported );
-}
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