xnu-1228.3.13.tar.gz

[apple/xnu.git] / osfmk / ppc / interrupt.c

diff --git a/osfmk/ppc/interrupt.c b/osfmk/ppc/interrupt.c
index 170ad22272d644163e384ab7cfafb477cc3bc712..5ae0bc8f722d17ae723d718a92aebdc71f018af0 100644 (file)
--- a/osfmk/ppc/interrupt.c
+++ b/osfmk/ppc/interrupt.c
@@ -1,23 +1,29 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple 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@

  */
 /*
  * @OSF_COPYRIGHT@
  */
 /*
  * @OSF_COPYRIGHT@


@@ -25,19 +31,40 @@
 /*
  * @APPLE_FREE_COPYRIGHT@
  */
 /*
  * @APPLE_FREE_COPYRIGHT@
  */

+

 #include <kern/misc_protos.h>
 #include <kern/assert.h>
 #include <kern/thread.h>
 #include <kern/counters.h>
 #include <kern/misc_protos.h>
 #include <kern/assert.h>
 #include <kern/thread.h>
 #include <kern/counters.h>

+#include <kern/etimer.h>
+#include <kern/pms.h>

 #include <ppc/misc_protos.h>
 #include <ppc/trap.h>
 #include <ppc/proc_reg.h>
 #include <ppc/exception.h>
 #include <ppc/savearea.h>
 #include <ppc/misc_protos.h>
 #include <ppc/trap.h>
 #include <ppc/proc_reg.h>
 #include <ppc/exception.h>
 #include <ppc/savearea.h>

+#include <ppc/vmachmon.h>
+#include <ppc/machine_cpu.h>

 #include <pexpert/pexpert.h>
 #include <sys/kdebug.h>
 
 #include <pexpert/pexpert.h>
 #include <sys/kdebug.h>
 

-perfCallback perfIntHook = 0;                                          /* Pointer to CHUD trap hook routine */
+perfCallback perfIntHook;                                              /* Pointer to CHUD trap hook routine */
+
+#if CONFIG_DTRACE
+#if (DEVELOPMENT || DEBUG )
+#include <mach/sdt.h>
+#endif
+
+extern vm_offset_t dtrace_get_cpu_int_stack_top(void);
+
+vm_offset_t dtrace_get_cpu_int_stack_top(void)
+{
+       return getPerProc()->intstack_top_ss;
+}
+
+/* See <rdar://problem/4613924> */
+perfCallback tempDTraceIntHook; /* Pointer to DTrace fbt int handler */
+#endif

 
 void unresolved_kernel_trap(int trapno,
                                   struct savearea *ssp,
 
 void unresolved_kernel_trap(int trapno,
                                   struct savearea *ssp,


@@ -45,6 +72,8 @@ void unresolved_kernel_trap(int trapno,
                                   addr64_t dar,
                                   const char *message);
 
                                   addr64_t dar,
                                   const char *message);
 

+unsigned int isync_mfdec(void);
+

 struct savearea * interrupt(
         int type,
         struct savearea *ssp,
 struct savearea * interrupt(
         int type,
         struct savearea *ssp,


@@ -62,6 +91,12 @@ struct savearea * interrupt(
                if(perfIntHook(type, ssp, dsisr, dar) == KERN_SUCCESS) return ssp;      /* If it succeeds, we are done... */
        }
        
                if(perfIntHook(type, ssp, dsisr, dar) == KERN_SUCCESS) return ssp;      /* If it succeeds, we are done... */
        }
        

+#if CONFIG_DTRACE
+       if(tempDTraceIntHook) {                                                 /* Is there a hook? */
+               if(tempDTraceIntHook(type, ssp, dsisr, dar) == KERN_SUCCESS) return ssp;        /* If it succeeds, we are done... */
+       }
+#endif
+

 #if 0
        {
                extern void fctx_text(void);
 #if 0
        {
                extern void fctx_text(void);


@@ -79,16 +114,15 @@ struct savearea * interrupt(
                        KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_DECI, 0) | DBG_FUNC_NONE,
                                  isync_mfdec(), (unsigned int)ssp->save_srr0, 0, 0, 0);
        
                        KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_DECI, 0) | DBG_FUNC_NONE,
                                  isync_mfdec(), (unsigned int)ssp->save_srr0, 0, 0, 0);
        

-#if 0
-                       if (pcsample_enable) {
-                               if (find_user_regs(current_thread()))
-                                 add_pcsamples (user_pc(current_thread()));
+                       now = mach_absolute_time();                             /* Find out what time it is */
+                       
+                       if(now >= proc_info->pms.pmsPop) {              /* Is it time for power management state change? */
+                               pmsStep(1);                                                     /* Yes, advance step */
+                               now = mach_absolute_time();                     /* Get the time again since we ran a bit */

                        }
                        }

-#endif

 
                        thread = current_thread();                                      /* Find ourselves */
                        if(thread->machine.qactTimer != 0) {    /* Is the timer set? */
 
                        thread = current_thread();                                      /* Find ourselves */
                        if(thread->machine.qactTimer != 0) {    /* Is the timer set? */

-                               clock_get_uptime(&now);                         /* Find out what time it is */

                                if (thread->machine.qactTimer <= now) { /* It is set, has it popped? */
                                        thread->machine.qactTimer = 0;          /* Clear single shot timer */
                                        if((unsigned int)thread->machine.vmmControl & 0xFFFFFFFE) {     /* Are there any virtual machines? */
                                if (thread->machine.qactTimer <= now) { /* It is set, has it popped? */
                                        thread->machine.qactTimer = 0;          /* Clear single shot timer */
                                        if((unsigned int)thread->machine.vmmControl & 0xFFFFFFFE) {     /* Are there any virtual machines? */


@@ -97,22 +131,34 @@ struct savearea * interrupt(
                                }
                        }
 
                                }
                        }
 

-                       rtclock_intr(0, ssp, 0);
+                       etimer_intr(USER_MODE(ssp->save_srr1), ssp->save_srr0); /* Handle event timer */

                        break;
        
                case T_INTERRUPT:
                        /* Call the platform interrupt routine */
                        break;
        
                case T_INTERRUPT:
                        /* Call the platform interrupt routine */

-                       counter_always(c_incoming_interrupts++);
+                       counter(c_incoming_interrupts++);

        
                        KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) | DBG_FUNC_START,
                           current_cpu, (unsigned int)ssp->save_srr0, 0, 0, 0);
        
        
                        KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) | DBG_FUNC_START,
                           current_cpu, (unsigned int)ssp->save_srr0, 0, 0, 0);
        

+#if CONFIG_DTRACE && (DEVELOPMENT || DEBUG )
+                       DTRACE_INT5(interrupt__start, void *, proc_info->interrupt_nub, int, proc_info->interrupt_source, 
+                                               void *, proc_info->interrupt_target, IOInterruptHandler, proc_info->interrupt_handler,
+                                               void *, proc_info->interrupt_refCon);
+#endif
+

                        proc_info->interrupt_handler(
                                proc_info->interrupt_target, 
                                proc_info->interrupt_refCon,
                                proc_info->interrupt_nub, 
                                proc_info->interrupt_source);
        
                        proc_info->interrupt_handler(
                                proc_info->interrupt_target, 
                                proc_info->interrupt_refCon,
                                proc_info->interrupt_nub, 
                                proc_info->interrupt_source);
        

+#if CONFIG_DTRACE && (DEVELOPMENT || DEBUG )
+                       DTRACE_INT5(interrupt__complete, void *, proc_info->interrupt_nub, int, proc_info->interrupt_source, 
+                                               void *, proc_info->interrupt_target, IOInterruptHandler, proc_info->interrupt_handler,
+                                               void *, proc_info->interrupt_refCon);
+#endif
+

                        KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) | DBG_FUNC_END,
                           0, 0, 0, 0, 0);
        
                        KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) | DBG_FUNC_END,
                           0, 0, 0, 0, 0);
        


@@ -130,10 +176,8 @@ struct savearea * interrupt(
        
                                
                default:
        
                                
                default:

-#if     MACH_KDP || MACH_KDB
-                        if (!Call_Debugger(type, ssp))
-#endif
-                        unresolved_kernel_trap(type, ssp, dsisr, dar, NULL);
+                       if (!Call_Debugger(type, ssp))
+                               unresolved_kernel_trap(type, ssp, dsisr, dar, NULL);

                        break;
        }
 
                        break;
        }