drop the debian dde patch

2 files changed, 0 insertions, 799 deletions

diff --git a/debian/patches/70_dde.patch b/debian/patches/70_dde.patch
deleted file mode 100644
index 9868d85..0000000
--- a/debian/patches/70_dde.patch
+++ /dev/null
@@ -1,798 +0,0 @@
-commit 5cddfa824bde4ff8c235bf3adb1952ba99293941
-Author: Richard Braun <rbraun@sceen.net>
-Date:   Sun Jan 24 00:05:30 2016 +0100
-
-    70_dde
-
-diff --git a/Makefrag.am b/Makefrag.am
-index bb600e0..cfbef2c 100644
---- a/Makefrag.am
-+++ b/Makefrag.am
-@@ -220,6 +220,7 @@ EXTRA_DIST += \
- 	kern/mach.srv \
- 	kern/mach4.srv \
- 	kern/gnumach.srv \
-+	kern/experimental.srv \
- 	kern/mach_debug.srv \
- 	kern/mach_host.srv \
- 	kern/task_notify.cli
-@@ -304,6 +305,7 @@ libkernel_a_SOURCES += \
- 	device/device_types_kernel.h \
- 	device/ds_routines.c \
- 	device/ds_routines.h \
-+	device/intr.c \
- 	device/if_ether.h \
- 	device/if_hdr.h \
- 	device/io_req.h \
-@@ -352,6 +354,7 @@ include_device_HEADERS = \
- 	include/device/device_types.defs \
- 	include/device/device_types.h \
- 	include/device/disk_status.h \
-+	include/device/intr.h \
- 	include/device/net_status.h \
- 	include/device/tape_status.h \
- 	include/device/tty_status.h
-@@ -374,6 +377,7 @@ include_mach_HEADERS = \
- 	include/mach/memory_object_default.defs \
- 	include/mach/notify.defs \
- 	include/mach/std_types.defs \
-+	include/mach/experimental.defs \
- 	include/mach/alert.h \
- 	include/mach/boolean.h \
- 	include/mach/boot.h \
-@@ -522,6 +526,7 @@ nodist_lib_dep_tr_for_defs_a_SOURCES += \
- 	kern/mach.server.defs.c \
- 	kern/mach4.server.defs.c \
- 	kern/gnumach.server.defs.c \
-+	kern/experimental.server.defs.c \
- 	kern/mach_debug.server.defs.c \
- 	kern/mach_host.server.defs.c
- nodist_libkernel_a_SOURCES += \
-@@ -534,6 +539,9 @@ nodist_libkernel_a_SOURCES += \
- 	kern/gnumach.server.h \
- 	kern/gnumach.server.c \
- 	kern/gnumach.server.msgids \
-+	kern/experimental.server.h \
-+	kern/experimental.server.c \
-+	kern/experimental.server.msgids \
- 	kern/mach_debug.server.h \
- 	kern/mach_debug.server.c \
- 	kern/mach_debug.server.msgids \
-@@ -543,6 +551,7 @@ nodist_libkernel_a_SOURCES += \
- #	kern/mach.server.defs
- #	kern/mach4.server.defs
- #	kern/gnumach.server.defs
-+#	kern/experimental.server.defs
- #	kern/mach_debug.server.defs
- #	kern/mach_host.server.defs
- 
-diff --git a/device/ds_routines.c b/device/ds_routines.c
-index 43ed5b5..7921520 100644
---- a/device/ds_routines.c
-+++ b/device/ds_routines.c
-@@ -318,6 +318,43 @@ ds_device_map (device_t dev, vm_prot_t prot, vm_offset_t offset,
- 				offset, size, pager, unmap);
- }
- 
-+io_return_t
-+experimental_device_intr_register (ipc_port_t master_port, int line,
-+		       int id, int flags, ipc_port_t receive_port)
-+{
-+#ifdef MACH_XEN
-+  return D_INVALID_OPERATION;
-+#else	/* MACH_XEN */
-+  extern int install_user_intr_handler (unsigned int line,
-+					unsigned long flags,
-+					ipc_port_t dest);
-+  io_return_t ret;
-+
-+  /* Open must be called on the master device port.  */
-+  if (master_port != master_device_port)
-+    return D_INVALID_OPERATION;
-+
-+  /* XXX: move to arch-specific */
-+  if (line < 0 || line >= 16)
-+    return D_INVALID_OPERATION;
-+
-+  ret = insert_intr_entry (line, receive_port);
-+  if (ret)
-+    return ret;
-+  // TODO The original port should be replaced
-+  // when the same device driver calls it again, 
-+  // in order to handle the case that the device driver crashes and restarts.
-+  ret = install_user_intr_handler (line, flags, receive_port);
-+
-+  /* If the port is installed successfully, increase its reference by 1.
-+   * Thus, the port won't be destroyed after its task is terminated. */
-+  if (ret == 0)
-+    ip_reference (receive_port);
-+
-+  return ret;
-+#endif	/* MACH_XEN */
-+}
-+
- boolean_t
- ds_notify (mach_msg_header_t *msg)
- {
-@@ -1798,6 +1835,24 @@ device_writev_trap (mach_device_t device, dev_mode_t mode,
- 	return (result);
- }
- 
-+kern_return_t
-+experimental_device_intr_enable(ipc_port_t master_port, int line, char status)
-+{
-+#ifdef MACH_XEN
-+  return D_INVALID_OPERATION;
-+#else	/* MACH_XEN */
-+  if (master_port != master_device_port)
-+    return D_INVALID_OPERATION;
-+
-+  if (status)
-+    /* TODO: better name for generic-to-arch-specific call */
-+    enable_irq (line);
-+  else
-+    disable_irq (line);
-+  return 0;
-+#endif	/* MACH_XEN */
-+}
-+
- struct device_emulation_ops mach_device_emulation_ops =
- {
-   (void*) mach_device_reference,
-diff --git a/device/ds_routines.h b/device/ds_routines.h
-index c0543cb..e9f115f 100644
---- a/device/ds_routines.h
-+++ b/device/ds_routines.h
-@@ -83,4 +83,7 @@ io_return_t ds_device_writev_trap(
- 	io_buf_vec_t 	*iovec,
- 	vm_size_t 	count);
- 
-+/* XXX arch-specific */
-+extern ipc_port_t intr_rcv_ports[16];
-+
- #endif	/* DS_ROUTINES_H */
-diff --git a/device/intr.c b/device/intr.c
-new file mode 100644
-index 0000000..6fca328
---- /dev/null
-+++ b/device/intr.c
-@@ -0,0 +1,198 @@
-+#include <device/intr.h>
-+#include <device/ds_routines.h>
-+#include <kern/queue.h>
-+#include <kern/printf.h>
-+
-+#ifndef MACH_XEN
-+// TODO this is only for x86 system
-+#define sti() __asm__ __volatile__ ("sti": : :"memory")
-+#define cli() __asm__ __volatile__ ("cli": : :"memory")
-+
-+static boolean_t deliver_intr (int line, ipc_port_t dest_port);
-+
-+struct intr_entry
-+{
-+  queue_chain_t chain;
-+  ipc_port_t dest;
-+  int line;
-+  /* The number of interrupts occur since last run of intr_thread. */
-+  int interrupts;
-+};
-+
-+static queue_head_t intr_queue;
-+/* The total number of unprocessed interrupts. */
-+static int tot_num_intr;
-+
-+static struct intr_entry *
-+search_intr (int line, ipc_port_t dest)
-+{
-+  struct intr_entry *e;
-+  queue_iterate (&intr_queue, e, struct intr_entry *, chain)
-+    {
-+      if (e->dest == dest && e->line == line)
-+	return e;
-+    }
-+  return NULL;
-+}
-+
-+/* This function can only be used in the interrupt handler. */
-+void
-+queue_intr (int line, ipc_port_t dest)
-+{
-+  extern void intr_thread ();
-+  struct intr_entry *e;
-+  
-+  cli ();
-+  e = search_intr (line, dest);
-+  assert (e);
-+  e->interrupts++;
-+  tot_num_intr++;
-+  sti ();
-+
-+  thread_wakeup ((event_t) &intr_thread);
-+}
-+
-+/* insert an interrupt entry in the queue.
-+ * This entry exists in the queue until
-+ * the corresponding interrupt port is removed.*/
-+int
-+insert_intr_entry (int line, ipc_port_t dest)
-+{
-+  int err = 0;
-+  struct intr_entry *e, *new;
-+  int free = 0;
-+
-+  new = (struct intr_entry *) kalloc (sizeof (*new));
-+  if (new == NULL)
-+    return D_NO_MEMORY;
-+
-+  /* check whether the intr entry has been in the queue. */
-+  cli ();
-+  e = search_intr (line, dest);
-+  if (e)
-+    {
-+      printf ("the interrupt entry for line %d and port %p has been inserted\n",
-+	  line, dest);
-+      free = 1;
-+      err = D_ALREADY_OPEN;
-+      goto out;
-+    }
-+  new->line = line;
-+  new->dest = dest;
-+  new->interrupts = 0;
-+  queue_enter (&intr_queue, new, struct intr_entry *, chain);
-+out:
-+  sti ();
-+  if (free)
-+    kfree ((vm_offset_t) new, sizeof (*new));
-+  return err;
-+}
-+
-+/* this function should be called when line is disabled. */
-+void mark_intr_removed (int line, ipc_port_t dest)
-+{
-+  struct intr_entry *e;
-+
-+  e = search_intr (line, dest);
-+  if (e)
-+    e->dest = NULL;
-+}
-+
-+void
-+intr_thread ()
-+{
-+  struct intr_entry *e;
-+  int line;
-+  ipc_port_t dest;
-+  queue_init (&intr_queue);
-+  
-+  for (;;)
-+    {
-+      assert_wait ((event_t) &intr_thread, FALSE);
-+      cli ();
-+      while (tot_num_intr)
-+	{
-+	  int del = 0;
-+
-+	  queue_iterate (&intr_queue, e, struct intr_entry *, chain)
-+	    {
-+	      /* if an entry doesn't have dest port,
-+	       * we should remove it. */
-+	      if (e->dest == NULL)
-+		{
-+		  del = 1;
-+		  break;
-+		}
-+
-+	      if (e->interrupts)
-+		{
-+		  line = e->line;
-+		  dest = e->dest;
-+		  e->interrupts--;
-+		  tot_num_intr--;
-+
-+		  sti ();
-+		  deliver_intr (line, dest);
-+		  cli ();
-+		}
-+	    }
-+
-+	  /* remove the entry without dest port from the queue and free it. */
-+	  if (del)
-+	    {
-+	      assert (!queue_empty (&intr_queue));
-+	      queue_remove (&intr_queue, e, struct intr_entry *, chain);
-+	      sti ();
-+	      kfree ((vm_offset_t) e, sizeof (*e));
-+	      cli ();
-+	    }
-+	}
-+      sti ();
-+      thread_block (NULL);
-+    }
-+}
-+
-+static boolean_t
-+deliver_intr (int line, ipc_port_t dest_port)
-+{
-+  ipc_kmsg_t kmsg;
-+  mach_intr_notification_t *n;
-+  mach_port_t dest = (mach_port_t) dest_port;
-+
-+  if (dest == MACH_PORT_NULL)
-+    return FALSE;
-+
-+  kmsg = ikm_alloc(sizeof *n);
-+  if (kmsg == IKM_NULL) 
-+    return FALSE;
-+
-+  ikm_init(kmsg, sizeof *n);
-+  n = (mach_intr_notification_t *) &kmsg->ikm_header;
-+
-+  mach_msg_header_t *m = &n->intr_header;
-+  mach_msg_type_t *t = &n->intr_type;
-+
-+  m->msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_PORT_SEND, 0);
-+  m->msgh_size = sizeof *n;
-+  m->msgh_seqno = INTR_NOTIFY_MSGH_SEQNO;
-+  m->msgh_local_port = MACH_PORT_NULL;
-+  m->msgh_remote_port = MACH_PORT_NULL;
-+  m->msgh_id = MACH_INTR_NOTIFY;
-+
-+  t->msgt_name = MACH_MSG_TYPE_INTEGER_32;
-+  t->msgt_size = 32;
-+  t->msgt_number = 1;
-+  t->msgt_inline = TRUE;
-+  t->msgt_longform = FALSE;
-+  t->msgt_deallocate = FALSE;
-+  t->msgt_unused = 0;
-+
-+  n->intr_header.msgh_remote_port = dest;
-+  n->line = line;
-+
-+  ipc_port_copy_send (dest_port);
-+  ipc_mqueue_send_always(kmsg);
-+
-+  return TRUE;
-+}
-+#endif	/* MACH_XEN */
-diff --git a/include/device/intr.h b/include/device/intr.h
-new file mode 100644
-index 0000000..a02b64c
---- /dev/null
-+++ b/include/device/intr.h
-@@ -0,0 +1,17 @@
-+#ifndef __INTR_H__
-+
-+#define __INTR_H__
-+
-+#include <device/device_types.h>
-+
-+typedef struct
-+{
-+  mach_msg_header_t intr_header;
-+  mach_msg_type_t   intr_type;
-+  int		    line;
-+} mach_intr_notification_t;
-+
-+#define INTR_NOTIFY_MSGH_SEQNO 0
-+#define MACH_INTR_NOTIFY 424242
-+
-+#endif
-diff --git a/include/mach/experimental.defs b/include/mach/experimental.defs
-new file mode 100644
-index 0000000..ca1eb92
---- /dev/null
-+++ b/include/mach/experimental.defs
-@@ -0,0 +1,100 @@
-+/* 
-+ * Mach Operating System
-+ * Copyright (c) 1991,1990,1989 Carnegie Mellon University
-+ * All Rights Reserved.
-+ * 
-+ * Permission to use, copy, modify and distribute this software and its
-+ * documentation is hereby granted, provided that both the copyright
-+ * notice and this permission notice appear in all copies of the
-+ * software, derivative works or modified versions, and any portions
-+ * thereof, and that both notices appear in supporting documentation.
-+ * 
-+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
-+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
-+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
-+ * 
-+ * Carnegie Mellon requests users of this software to return to
-+ * 
-+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
-+ *  School of Computer Science
-+ *  Carnegie Mellon University
-+ *  Pittsburgh PA 15213-3890
-+ * 
-+ * any improvements or extensions that they make and grant Carnegie Mellon
-+ * the rights to redistribute these changes.
-+ */
-+
-+subsystem
-+#if	KERNEL_USER
-+	  KernelUser
-+#endif	/* KERNEL_USER */
-+#if	KERNEL_SERVER
-+	  KernelServer
-+#endif	/* KERNEL_SERVER */
-+		experimental 424242;
-+
-+#include <mach/std_types.defs>
-+#include <mach/mach_types.defs>
-+
-+serverprefix experimental_;
-+
-+type notify_port_t = MACH_MSG_TYPE_MOVE_SEND_ONCE
-+	ctype: mach_port_t;
-+
-+skip; /*simpleroutine mach_intr_notify(
-+		notify	: notify_port_t;
-+		name	: int);*/
-+
-+routine device_intr_register(
-+		master_port	: mach_port_t;
-+	in	line		: int;
-+	in	id		: int;
-+	in	flags		: int;
-+	in	receive_port	: mach_port_send_t
-+	);
-+
-+/*
-+ *	enable/disable the specified line.
-+ */
-+/* XXX: Naming a function taht can disable something "xxx_enable" is confusing. */
-+/* Is the disable part actually used at all? AIUI, the kernel IRQ handler
-+should always disable the line; and the userspace driver only has to
-+reenable it, after acknowledging and handling the interrupt...
-+*/
-+routine device_intr_enable(
-+		master_port	: mach_port_t;
-+		line		: int;
-+		status		: char);
-+
-+/*
-+ *	This routine is created for allocating DMA buffers.
-+ *	We are going to get a contiguous physical memory
-+ *	and its physical address in addition to the virtual address.
-+ */
-+
-+ /* XXX
-+ This RPC lacks a few additional constraints like boundaries, alignment
-+and maybe phase. We may not use them now, but they're important for
-+portability (e.g. if GNU Mach supports PAE, drivers that can't use
-+physical memory beyond the 4 GiB limit must be able to express it).
-+
-+> What do you mean by "phase"?
-+
-+Offset from the alignment. But I don't think it's useful at all in this
-+case. Minimum and maximum addresses and alignment should do. Maybe
-+boundary crossing but usually, specifying the right alignment and size
-+is enough.
-+
-+For upstream
-+inclusion, we need to do it properly: the RPC should return a special
-+memory object (similar to device_map() ), which can then be mapped into
-+the process address space with vm_map() like any other memory object.
-+
-+phys_address_t?
-+ */
-+routine vm_allocate_contiguous(
-+		host_priv	: host_priv_t;
-+		target_task	: vm_task_t;
-+	out	vaddr		: vm_address_t;
-+	out	paddr		: vm_address_t;
-+		size		: vm_size_t);
-diff --git a/kern/experimental.srv b/kern/experimental.srv
-new file mode 100644
-index 0000000..2ccfd78
---- /dev/null
-+++ b/kern/experimental.srv
-@@ -0,0 +1,3 @@
-+#define KERNEL_SERVER 1
-+
-+#include <mach/experimental.defs>
-diff --git a/kern/ipc_kobject.c b/kern/ipc_kobject.c
-index 709ec9e..c65458b 100644
---- a/kern/ipc_kobject.c
-+++ b/kern/ipc_kobject.c
-@@ -56,6 +56,7 @@
- #include <device/device_pager.server.h>
- #include <kern/mach4.server.h>
- #include <kern/gnumach.server.h>
-+#include <kern/experimental.server.h>
- 
- #if MACH_DEBUG
- #include <kern/mach_debug.server.h>
-@@ -159,6 +160,7 @@ ipc_kobject_server(request)
- 	 * to perform the kernel function
- 	 */
-     {
-+	extern mig_routine_t	experimental_server_routine();
- 	check_simple_locks();
- 	if ((routine = mach_server_routine(&request->ikm_header)) != 0
- 	 || (routine = mach_port_server_routine(&request->ikm_header)) != 0
-@@ -170,6 +172,7 @@ ipc_kobject_server(request)
- #endif	/* MACH_DEBUG */
- 	 || (routine = mach4_server_routine(&request->ikm_header)) != 0
- 	 || (routine = gnumach_server_routine(&request->ikm_header)) != 0
-+	 || (routine = experimental_server_routine(&request->ikm_header)) != 0
- #if	MACH_MACHINE_ROUTINES
- 	 || (routine = MACHINE_SERVER_ROUTINE(&request->ikm_header)) != 0
- #endif	/* MACH_MACHINE_ROUTINES */
-diff --git a/kern/startup.c b/kern/startup.c
-index bd29694..05de5e6 100644
---- a/kern/startup.c
-+++ b/kern/startup.c
-@@ -79,6 +79,7 @@ boolean_t reboot_on_panic = TRUE;
- /* XX */
- extern vm_offset_t phys_first_addr, phys_last_addr;
- extern char *kernel_cmdline;
-+extern void	intr_thread();
- 
- /*
-  *	Running in virtual memory, on the interrupt stack.
-@@ -221,6 +222,9 @@ void start_kernel_threads(void)
- 	(void) kernel_thread(kernel_task, reaper_thread, (char *) 0);
- 	(void) kernel_thread(kernel_task, swapin_thread, (char *) 0);
- 	(void) kernel_thread(kernel_task, sched_thread, (char *) 0);
-+#ifndef MACH_XEN
-+	(void) kernel_thread(kernel_task, intr_thread, (char *)0);
-+#endif	/* MACH_XEN */
- 
- #if	NCPUS > 1
- 	/*
-diff --git a/linux/dev/arch/i386/kernel/irq.c b/linux/dev/arch/i386/kernel/irq.c
-index 7753814..b7dfa1a 100644
---- a/linux/dev/arch/i386/kernel/irq.c
-+++ b/linux/dev/arch/i386/kernel/irq.c
-@@ -83,6 +83,7 @@ struct linux_action
-   void *dev_id;
-   struct linux_action *next;
-   unsigned long flags;
-+  volatile ipc_port_t delivery_port;
- };
- 
- static struct linux_action *irq_action[16] =
-@@ -102,6 +103,7 @@ linux_intr (int irq)
- {
-   struct pt_regs regs;
-   struct linux_action *action = *(irq_action + irq);
-+  struct linux_action **prev = &irq_action[irq];
-   unsigned long flags;
- 
-   kstat.interrupts[irq]++;
-@@ -113,7 +115,37 @@ linux_intr (int irq)
- 
-   while (action)
-     {
--      action->handler (irq, action->dev_id, &regs);
-+      // TODO I might need to check whether the interrupt belongs to
-+      // the current device. But I don't do it for now.
-+      if (action->delivery_port)
-+	{
-+	  /* The reference of the port was increased
-+	   * when the port was installed.
-+	   * If the reference is 1, it means the port should
-+	   * have been destroyed and I destroy it now. */
-+	  if (action->delivery_port
-+	      && action->delivery_port->ip_references == 1)
-+	    {
-+	      mark_intr_removed (irq, action->delivery_port);
-+	      ipc_port_release (action->delivery_port);
-+	      *prev = action->next;
-+	      printk ("irq handler %d: release an dead delivery port\n", irq);
-+	      linux_kfree(action);
-+	      action = *prev;
-+	      continue;
-+	    }
-+	  else
-+	    {
-+	      /* We disable the irq here and it will be enabled
-+	       * after the interrupt is handled by the user space driver. */
-+	      disable_irq (irq);
-+	      queue_intr (irq, action->delivery_port);
-+	    }
-+
-+	}
-+      else if (action->handler)
-+	action->handler (irq, action->dev_id, &regs);
-+      prev = &action->next;
-       action = action->next;
-     }
- 
-@@ -233,6 +265,7 @@ setup_x86_irq (int irq, struct linux_action *new)
- 	}
-       while (old);
-       shared = 1;
-+      printk("store a new irq %d\n", irq);
-     }
- 
-   save_flags (flags);
-@@ -250,6 +283,51 @@ setup_x86_irq (int irq, struct linux_action *new)
-   return 0;
- }
- 
-+int
-+install_user_intr_handler (unsigned int irq, unsigned long flags,
-+			  ipc_port_t dest)
-+{
-+  struct linux_action *action;
-+  struct linux_action *old;
-+  int retval;
-+
-+  assert (irq < 16);
-+
-+  /* Test whether the irq handler has been set */
-+  // TODO I need to protect the array when iterating it.
-+  old = irq_action[irq];
-+  while (old)
-+    {
-+      if (old->delivery_port == dest)
-+	{
-+	  printk ("The interrupt handler has been installed on line %d", irq);
-+	  return linux_to_mach_error (-EAGAIN);
-+	}
-+      old = old->next;
-+    }
-+
-+  /*
-+   * Hmm... Should I use `kalloc()' ?
-+   * By OKUJI Yoshinori.
-+   */
-+  action = (struct linux_action *)
-+    linux_kmalloc (sizeof (struct linux_action), GFP_KERNEL);
-+  if (action == NULL)
-+    return linux_to_mach_error (-ENOMEM);
-+  
-+  action->handler = NULL;
-+  action->next = NULL;
-+  action->dev_id = NULL;
-+  action->flags = flags;
-+  action->delivery_port = dest;
-+  
-+  retval = setup_x86_irq (irq, action);
-+  if (retval)
-+    linux_kfree (action);
-+  
-+  return linux_to_mach_error (retval);
-+}
-+
- /*
-  * Attach a handler to an IRQ.
-  */
-@@ -278,6 +356,7 @@ request_irq (unsigned int irq, void (*handler) (int, void *, struct pt_regs *),
-   action->next = NULL;
-   action->dev_id = dev_id;
-   action->flags = flags;
-+  action->delivery_port = NULL;
-   
-   retval = setup_x86_irq (irq, action);
-   if (retval)
-diff --git a/linux/dev/drivers/block/genhd.c b/linux/dev/drivers/block/genhd.c
-index 3a86138..4a36f7f 100644
---- a/linux/dev/drivers/block/genhd.c
-+++ b/linux/dev/drivers/block/genhd.c
-@@ -812,7 +812,9 @@ void device_setup(void)
- #ifdef MACH
- 	linux_intr_pri = SPL6;
- #endif
--	net_dev_init();
-+	extern char *kernel_cmdline;
-+	if (!strstr(kernel_cmdline, " nonetdev"))
-+		net_dev_init();
- #endif
- #ifndef MACH
- 	console_map_init();
-diff --git a/vm/vm_user.c b/vm/vm_user.c
-index c71e9f5..f466b1d 100644
---- a/vm/vm_user.c
-+++ b/vm/vm_user.c
-@@ -449,3 +449,106 @@ kern_return_t vm_wire(port, map, start, size, access)
- 				    round_page(start+size),
- 				    access);
- }
-+
-+kern_return_t experimental_vm_allocate_contiguous(host_priv, map, result_vaddr, result_paddr, size)
-+	host_t			host_priv;
-+	vm_map_t		map;
-+	vm_address_t		*result_vaddr;
-+	vm_address_t		*result_paddr;
-+	vm_size_t		size;
-+{
-+	unsigned int		npages;
-+	unsigned int		i;
-+	unsigned int		order;
-+	vm_page_t		pages;
-+	vm_object_t		object;
-+	vm_map_entry_t		entry;
-+	kern_return_t		kr;
-+	vm_address_t		vaddr;
-+	vm_offset_t		offset = 0;
-+
-+	if (host_priv == HOST_NULL)
-+		return KERN_INVALID_HOST;
-+
-+	if (map == VM_MAP_NULL)
-+		return KERN_INVALID_TASK;
-+
-+	/*
-+	 * XXX The page allocator returns blocks with a power-of-two size.
-+	 * The requested size may not be a power-of-two, causing the pages
-+	 * at the end of a block to be unused. In order to keep track of
-+	 * those pages, they must all be inserted in the VM object created
-+	 * by this function.
-+	 */
-+	order = vm_page_order(size);
-+	size = (1 << (order + PAGE_SHIFT));
-+
-+	/* We allocate the contiguous physical pages for the buffer. */
-+
-+	npages = size / PAGE_SIZE;
-+	pages = vm_page_grab_contig(size, VM_PAGE_SEL_DIRECTMAP);
-+	if (pages == NULL)
-+	{
-+		return KERN_RESOURCE_SHORTAGE;
-+	}
-+	
-+#if 0
-+	kr = vm_page_grab_contig(npages, pages, NULL, TRUE);
-+	if (kr)
-+	{
-+		kfree (pages, npages * sizeof (vm_page_t));
-+		return kr;
-+	}
-+#endif
-+
-+	/* Allocate the object 
-+	 * and find the virtual address for the DMA buffer */
-+
-+	object = vm_object_allocate(size);
-+	vm_map_lock(map);
-+	/* TODO user_wired_count might need to be set as 1 */
-+	kr = vm_map_find_entry(map, &vaddr, size, (vm_offset_t) 0,
-+			       VM_OBJECT_NULL, &entry);
-+	if (kr != KERN_SUCCESS) 
-+	{
-+		vm_map_unlock(map);
-+		vm_object_deallocate(object);
-+		vm_page_free_contig(pages, size);
-+		return kr;
-+	}
-+	        
-+	entry->object.vm_object = object;
-+	entry->offset = 0;
-+
-+	/* We can unlock map now.  */
-+	vm_map_unlock(map);
-+
-+	/* We have physical pages we need and now we need to do the mapping. */
-+
-+	pmap_pageable (map->pmap, vaddr, vaddr + size, FALSE);
-+
-+	*result_vaddr = vaddr;
-+	*result_paddr = pages->phys_addr;
-+
-+	for (i = 0; i < npages; i++)
-+	{
-+		vm_object_lock(object);
-+		vm_page_lock_queues();
-+		vm_page_insert(&pages[i], object, offset);
-+		vm_page_wire(&pages[i]);
-+		vm_page_unlock_queues();
-+		vm_object_unlock(object);
-+
-+		/* Enter it in the kernel pmap */
-+		PMAP_ENTER(map->pmap, vaddr, &pages[i], VM_PROT_DEFAULT, TRUE);
-+
-+		vm_object_lock(object);
-+		PAGE_WAKEUP_DONE(&pages[i]);
-+		vm_object_unlock(object);
-+
-+		vaddr += PAGE_SIZE;
-+		offset += PAGE_SIZE;
-+	}
-+
-+	return KERN_SUCCESS;
-+}
diff --git a/debian/patches/series b/debian/patches/series
index dafe20b..7342a39 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -2,7 +2,6 @@
 12_version_suffix.patch
 50_initrd.patch
 60_bigmem.patch
-70_dde.patch
 
 #vm_cache_policy.patch
 #vm_page_cleanq.patch