FOC: Fix in kernel 'Op_cache_dma_coherent'

'Mem_unit::flush_dcache' takes void pointers as arguments, no need to take the
given void pointers ('start' and 'end') and transform them to
'Virt_addr(Address(x)' types. This breaks cache flushing in r72.

COPYING-GPL-2

@@ -0,0 +1,349 @@
+
+  NOTE! This License shall not affect user programs that use the micro-kernel
+API to invoke kernel-operations or services provided in other address
+spaces - this is merely considered normal use of the kernel or
+accompanying user-level services, and does not fall under the heading of
+"derivative work".
+
+-----------------------------------------------------------------------
+
+
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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kernel/fiasco/src/jdb/jdb_kobject_names.cpp

@@ -43,7 +43,7 @@ IMPLEMENTATION:
 
 enum
 {
-  Name_buffer_size = 8192,
+  Name_buffer_size = 4*8192,
   Name_entries = Name_buffer_size / sizeof(Jdb_kobject_name),
 };
 

kernel/fiasco/src/kern/app_cpu_thread.cpp

@@ -28,6 +28,11 @@ IMPLEMENTATION [mp]:
 #include "timer_tick.h"
 #include "spin_lock.h"
 
+PUBLIC explicit inline
+App_cpu_thread::App_cpu_thread(Ram_quota *q)
+: Kernel_thread(q)
+{}
+
 PUBLIC static
 Kernel_thread *
 App_cpu_thread::may_be_create(Cpu_number cpu, bool cpu_never_seen_before)
@@ -38,7 +43,7 @@ App_cpu_thread::may_be_create(Cpu_number cpu, bool cpu_never_seen_before)
       return static_cast<Kernel_thread *>(kernel_context(cpu));
     }
 
-  Kernel_thread *t = new (Ram_quota::root) App_cpu_thread;
+  Kernel_thread *t = new (Ram_quota::root) App_cpu_thread(Ram_quota::root);
   assert (t);
 
   t->set_home_cpu(cpu);

kernel/fiasco/src/kern/arm/bsp/omap/timer-arm-mptimer-omap4.cpp

@@ -4,5 +4,13 @@ INTERFACE [arm && mptimer && omap4_pandaboard]:
 EXTENSION class Timer
 {
 private:
-  static Mword interval() { return 499999; }
+  static Mword interval()
+  {
+    /*
+     * This is only valid for Panda A6, as we run it at our offices. For A6
+     * U-Boot will clock the board at 800 MHz leading to a 400 MHz private timer
+     * tick.
+     */
+    return 399999;
+  }
 };

kernel/fiasco/src/kern/arm/main.cpp

@@ -82,7 +82,7 @@ kernel_main()
   //  pic_disable_all();
 
   // create kernel thread
-  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread;
+  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread(Ram_quota::root);
   Task *const ktask = Kernel_task::kernel_task();
   check(kernel->bind(ktask, User<Utcb>::Ptr(0)));
   assert(((Mword)kernel->init_stack() & 7) == 0);

kernel/fiasco/src/kern/arm/mem_op.cpp

@@ -99,7 +99,7 @@ Mem_op::__arm_kmem_l1_cache_maint(int op, void const *kstart, void const *kend)
       break;
 
     case Op_cache_dma_coherent:
-      Mem_unit::flush_dcache(Virt_addr(Address(kstart)), Virt_addr(Address(kend)));
+      Mem_unit::flush_dcache(kstart, kend);
       break;
 
     // We might not want to implement this one but single address outer

kernel/fiasco/src/kern/arm/thread-arm.cpp

@@ -330,11 +330,12 @@ IMPLEMENTATION [arm]:
     @post state() != 0
  */
 IMPLEMENT
-Thread::Thread()
-  : Sender(0),	// select optimized version of constructor
-    _pager(Thread_ptr::Invalid),
-    _exc_handler(Thread_ptr::Invalid),
-    _del_observer(0)
+Thread::Thread(Ram_quota *q)
+: Sender(0),
+  _pager(Thread_ptr::Invalid),
+  _exc_handler(Thread_ptr::Invalid),
+  _quota(q),
+  _del_observer(0)
 {
   assert (state(false) == 0);
 

kernel/fiasco/src/kern/ia32/32/main-ia32-32.cpp

@@ -45,7 +45,7 @@ kernel_main(void)
   main_arch();
 
   // create kernel thread
-  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread;
+  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread(Ram_quota::root);
   assert_opt (kernel);
   Task *const ktask = Kernel_task::kernel_task();
   check(kernel->bind(ktask, User<Utcb>::Ptr(0)));

kernel/fiasco/src/kern/ia32/64/entry.S

@@ -441,6 +441,7 @@ alien_sys_call:
 	.p2align
 	.globl	leave_by_trigger_exception
 leave_by_trigger_exception:
+	cli
         sub $40, %rsp
 	pushq	$0x00
 	pushq	$0xff

kernel/fiasco/src/kern/ia32/64/main-ia32-64.cpp

@@ -42,7 +42,7 @@ kernel_main(void)
   main_arch();
 
   // create kernel thread
-  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread;
+  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread(Ram_quota::root);
   Task *const ktask = Kernel_task::kernel_task();
   check(kernel->bind(ktask, User<Utcb>::Ptr(0)));
 

kernel/fiasco/src/kern/ia32/thread-ia32.cpp

@@ -55,11 +55,12 @@ IMPLEMENTATION [ia32,amd64,ux]:
 Trap_state::Handler Thread::nested_trap_handler FIASCO_FASTCALL;
 
 IMPLEMENT
-Thread::Thread()
+Thread::Thread(Ram_quota *q)
 : Receiver(),
   Sender(0),   // select optimized version of constructor
   _pager(Thread_ptr::Invalid),
   _exc_handler(Thread_ptr::Invalid),
+  _quota(q),
   _del_observer(0)
 {
   assert (state(false) == 0);

kernel/fiasco/src/kern/kernel_thread-std.cpp

@@ -73,7 +73,7 @@ Kernel_thread::init_workload()
 	check(map(o, sigma0, sigma0, c, 0));
     }
 
-  Thread_object *sigma0_thread = new (Ram_quota::root) Thread_object();
+  Thread_object *sigma0_thread = new (Ram_quota::root) Thread_object(Ram_quota::root);
 
   assert(sigma0_thread);
 
@@ -99,7 +99,7 @@ Kernel_thread::init_workload()
   // prevent deletion of this thing
   boot_task->inc_ref();
 
-  Thread_object *boot_thread = new (Ram_quota::root) Thread_object();
+  Thread_object *boot_thread = new (Ram_quota::root) Thread_object(Ram_quota::root);
 
   assert (boot_thread);
 

kernel/fiasco/src/kern/kernel_thread.cpp

@@ -45,8 +45,9 @@ IMPLEMENTATION:
 #include "watchdog.h"
 
 
-PUBLIC
-Kernel_thread::Kernel_thread() : Thread_object(Thread::Kernel)
+PUBLIC explicit
+Kernel_thread::Kernel_thread(Ram_quota *q)
+: Thread_object(q, Thread::Kernel)
 {}
 
 PUBLIC inline

kernel/fiasco/src/kern/mips/main.cpp

@@ -78,7 +78,7 @@ extern "C" void kernel_main()
   set_exit_question(&exit_question);
 
   // create kernel thread
-  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread;
+  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread(Ram_quota::root);
   Task *const ktask = Kernel_task::kernel_task();
   check(kernel->bind(ktask, User<Utcb>::Ptr(0)));
   assert(((Mword)kernel->init_stack() & 7) == 0);

kernel/fiasco/src/kern/mips/thread-mips.cpp

@@ -99,10 +99,11 @@ IMPLEMENT inline void  Thread::user_ip(Mword ip)  { regs()->ip(ip); }
     @post state() != 0
  */
 IMPLEMENT
-Thread::Thread()
-: Sender            (0),	// select optimized version of constructor
+Thread::Thread(Ram_quota *q)
+: Sender(0),
   _pager(Thread_ptr::Invalid),
   _exc_handler(Thread_ptr::Invalid),
+  _quota(q),
   _del_observer(0)
 {
 

kernel/fiasco/src/kern/ppc32/main.cpp

@@ -82,7 +82,7 @@ int main()
   //  pic_disable_all();
 
   // create kernel thread
-  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread;
+  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread(Ram_quota::root);
   Task *const ktask = Kernel_task::kernel_task();
   check(kernel->bind(ktask, User<Utcb>::Ptr(0)));
   //kdb_ke("init");

kernel/fiasco/src/kern/ppc32/thread-ppc32.cpp

@@ -239,11 +239,12 @@ IMPLEMENTATION [ppc32]:
     @post state() != 0
  */
 IMPLEMENT
-Thread::Thread()
-  : Sender            (0),	// select optimized version of constructor
-    _pager(Thread_ptr::Invalid),
-    _exc_handler(Thread_ptr::Invalid),
-    _del_observer(0)
+Thread::Thread(Ram_quota *q)
+: Sender(0),
+  _pager(Thread_ptr::Invalid),
+  _exc_handler(Thread_ptr::Invalid),
+  _quota(q),
+  _del_observer(0)
 {
 
   assert(state(false) == 0);

kernel/fiasco/src/kern/sparc/main.cpp

@@ -81,7 +81,7 @@ int main()
   //  pic_disable_all();
 
   // create kernel thread
-  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread;
+  static Kernel_thread *kernel = new (Ram_quota::root) Kernel_thread(Ram_quota::root);
   Task *const ktask = Kernel_task::kernel_task();
   check(kernel->bind(ktask, User<Utcb>::Ptr(0)));
   //kdb_ke("init");

kernel/fiasco/src/kern/sparc/thread-sparc.cpp

@@ -164,10 +164,11 @@ IMPLEMENTATION [sparc]:
     @post state() != 0
  */
 IMPLEMENT
-Thread::Thread()
-  : Sender            (0),	// select optimized version of constructor
+Thread::Thread(Ram_quota *q)
+  : Sender(0),
     _pager(Thread_ptr::Invalid),
     _exc_handler(Thread_ptr::Invalid),
+    _quota(q),
     _del_observer(0)
 {
 

kernel/fiasco/src/kern/task.cpp

@@ -516,10 +516,15 @@ Task::sys_caps_equal(Syscall_frame *, Utcb *utcb)
   if (obj_a.special() || obj_b.special())
     return commit_result(obj_a.special_cap() == obj_b.special_cap());
 
-  Obj_space::Capability c_a = lookup(obj_a.cap());
-  Obj_space::Capability c_b = lookup(obj_b.cap());
+  Kobject_iface* ki_a = lookup(obj_a.cap()).obj();
+  Kobject_iface* ki_b = lookup(obj_b.cap()).obj();
 
-  return commit_result(c_a == c_b);
+  if (!ki_b || !ki_a) return commit_result(0);
+
+  Mword o_a = ki_a->obj_id();
+  Mword o_b = ki_b->obj_id();
+
+  return commit_result(o_a == o_b);
 }
 
 PRIVATE inline NOEXPORT

kernel/fiasco/src/kern/thread.cpp

@@ -96,7 +96,7 @@ public:
    *
    * @post state() != 0.
    */
-  Thread();
+  explicit Thread(Ram_quota *);
 
   int handle_page_fault(Address pfa, Mword error, Mword pc,
                         Return_frame *regs);
@@ -139,7 +139,7 @@ public:
   bool arch_ext_vcpu_enabled();
 
 protected:
-  explicit Thread(Context_mode_kernel);
+  explicit Thread(Ram_quota *, Context_mode_kernel);
 
   // More ipc state
   Thread_ptr _pager;
@@ -198,10 +198,8 @@ Thread::operator new(size_t, Ram_quota *q) throw ()
 {
   void *t = Kmem_alloc::allocator()->q_unaligned_alloc(q, Thread::Size);
   if (t)
-    {
-      memset(t, 0, sizeof(Thread));
-      reinterpret_cast<Thread*>(t)->_quota = q;
-    }
+    memset(t, 0, sizeof(Thread));
+
   return t;
 }
 
@@ -272,8 +270,8 @@ Thread::unbind()
     @param id user-visible thread ID of the sender
  */
 IMPLEMENT inline
-Thread::Thread(Context_mode_kernel)
-  : Receiver(), Sender(), _del_observer(0), _magic(magic)
+Thread::Thread(Ram_quota *q, Context_mode_kernel)
+  : Receiver(), Sender(), _quota(q), _del_observer(0), _magic(magic)
 {
   inc_ref();
   _space.space(Kernel_task::kernel_task());

kernel/fiasco/src/kern/thread_object.cpp

@@ -68,11 +68,12 @@ Obj_cap::revalidate(Kobject_iface *o)
   return deref() == o;
 }
 
-PUBLIC
-Thread_object::Thread_object() : Thread() {}
+PUBLIC explicit
+Thread_object::Thread_object(Ram_quota *q) : Thread(q) {}
 
-PUBLIC
-Thread_object::Thread_object(Context_mode_kernel k) : Thread(k) {}
+PUBLIC explicit
+Thread_object::Thread_object(Ram_quota *q, Context_mode_kernel k)
+: Thread(q, k) {}
 
 PUBLIC virtual
 bool
@@ -693,7 +694,7 @@ thread_factory(Ram_quota *q, Space *,
                int *err)
 {
   *err = L4_err::ENomem;
-  return new (q) Thread_object();
+  return new (q) Thread_object(q);
 }
 
 static inline void __attribute__((constructor)) FIASCO_INIT

l4/Makefile

@@ -473,7 +473,6 @@ define switch_ram_base_func
 	echo "# File semi-automatically generated by 'make switch_ram_base'" > $(OBJ_BASE)/Makeconf.ram_base; \
 	echo "RAM_BASE := $(1)"                                             >> $(OBJ_BASE)/Makeconf.ram_base; \
 	PWD=$(PWD)/l4re-core/pkg/sigma0/server/src $(MAKE) RAM_BASE=$(1) -C pkg/l4re-core/sigma0/server/src;                      \
-	PWD=$(PWD)/l4re-core/pkg/moe/server/src    $(MAKE) RAM_BASE=$(1) -C pkg/l4re-core/moe/server/src;                         \
 	echo "RAM_BASE_SWITCH_OK := yes"                                    >> $(OBJ_BASE)/Makeconf.ram_base
 endef
 

l4/pkg/bootstrap/server/src/platform/x86_pc-base.h

@@ -877,7 +877,11 @@ public:
           }
         else if (comport == -1)
           {
-            legacy_uart(1, comirq, &board);
+            /* try to read Bios Data Area (BDA) to get comport information */
+            unsigned short comport_count = (*((unsigned short *)0x410) >> 9) & 0x7;
+            if (comport_count) comport = *((unsigned short *)0x400), comirq, &board;
+            else comport = 1;
+            legacy_uart(comport, comirq, &board);
             comport = 0;
           }
         else

l4/pkg/l4re-core/l4sys/include/ARCH-x86/ipc-invoke.h

@@ -48,7 +48,11 @@
 #if 1
 
 #ifdef __PIC__
+#ifndef __cplusplus
 extern void (*__l4sys_invoke_indirect)(void);
+#else
+extern "C" void (*__l4sys_invoke_indirect)(void);
+#endif
 #endif
 #  define IPC_SYSENTER      "# indirect sys invoke \n\t" \
                             "call *%[func]    \n\t"

l4/pkg/l4re-core/l4sys/include/kdebug.h

@@ -133,6 +133,13 @@ __kdebug_op_1(unsigned op, l4_mword_t val) L4_NOTHROW
   return res;
 }
 
+L4_INLINE unsigned __kdebug_strlen(char const * s)
+{
+	unsigned r = 0;
+	for (; s && *s; s++, r++);
+	return r;
+}
+
 L4_INLINE void enter_kdebug(char const *text) L4_NOTHROW
 {
   /* special case, enter without any text and use of the UTCB */
@@ -144,14 +151,14 @@ L4_INLINE void enter_kdebug(char const *text) L4_NOTHROW
       return;
     }
 
-  __kdebug_text(L4_KDEBUG_ENTER, text, __builtin_strlen(text));
+  __kdebug_text(L4_KDEBUG_ENTER, text, __kdebug_strlen(text));
 }
 
 L4_INLINE void outnstring(char const *text, unsigned len)
 { __kdebug_text(L4_KDEBUG_OUTNSTRING, text, len); }
 
 L4_INLINE void outstring(char const *text)
-{ outnstring(text, __builtin_strlen(text)); }
+{ outnstring(text, __kdebug_strlen(text)); }
 
 
 L4_INLINE void outchar(char c)

l4/pkg/l4re-core/sigma0/server/src/init.cc

@@ -27,6 +27,7 @@
 #include "ioports.h"
 #include "mem_man_test.h"
 #include <l4/sys/debugger.h>
+#include <l4/sys/scheduler.h>
 
 /* started as the L4 sigma0 task from crt0.S */
 
@@ -61,6 +62,10 @@ init(l4_kernel_info_t *info)
   l4_debugger_set_object_name(L4_BASE_FACTORY_CAP, "root factory");
   l4_debugger_set_object_name(L4_BASE_THREAD_CAP,  "sigma0");
 
+  l4_sched_param_t params = l4_sched_param(255);
+  l4_scheduler_run_thread(L4_BASE_SCHEDULER_CAP, L4_BASE_THREAD_CAP, &params);
+
+
   Page_alloc_base::init();
 
   init_memory(info);

l4/pkg/l4re-core/sigma0/server/src/ioports_x86.cc

@@ -39,8 +39,9 @@ void handle_io_page_fault(l4_umword_t t, l4_utcb_t *utcb, Answer *a)
   size = l4_fpage_size(fp) + PORT_SHIFT;
 
   unsigned long i = io_ports.alloc(Region::bs(port, 1UL << size, t));
-  if (i == port)
+  if (i == port) {
     a->snd_fpage(l4_iofpage(port >> PORT_SHIFT, size - PORT_SHIFT));
-  else
+    a->tag = l4_msgtag(0, 0, 1, 0);
+  } else
     a->error(L4_ENOMEM);
 }