[PATCH 17/26] score: Add Per_CPU_Control::Interrupt_frame

[Sebastian Huber]

Update #2809.
---
 cpukit/score/cpu/sparc/cpu.c              |  5 -----
 cpukit/score/include/rtems/score/percpu.h | 28 +++++++++++++++++++++++++---
 cpukit/score/src/percpuasm.c              | 14 +++++++++++++-
 3 files changed, 38 insertions(+), 9 deletions(-)

diff --git a/cpukit/score/cpu/sparc/cpu.c b/cpukit/score/cpu/sparc/cpu.c
index 92d1c66..4aa30db 100644
--- a/cpukit/score/cpu/sparc/cpu.c
+++ b/cpukit/score/cpu/sparc/cpu.c
@@ -110,11 +110,6 @@ RTEMS_STATIC_ASSERT(
   SPARC_MINIMUM_STACK_FRAME_SIZE
 );
 
-RTEMS_STATIC_ASSERT(
-  sizeof(CPU_Interrupt_frame) == CPU_INTERRUPT_FRAME_SIZE,
-  CPU_Interrupt_frame_size
-);
-
 /* https://devel.rtems.org/ticket/2352 */
 RTEMS_STATIC_ASSERT(
   sizeof(CPU_Interrupt_frame) % CPU_ALIGNMENT == 0,
diff --git a/cpukit/score/include/rtems/score/percpu.h b/cpukit/score/include/rtems/score/percpu.h
index d2025c0..39190e9 100644
--- a/cpukit/score/include/rtems/score/percpu.h
+++ b/cpukit/score/include/rtems/score/percpu.h
@@ -9,6 +9,8 @@
  *  COPYRIGHT (c) 1989-2011.
  *  On-Line Applications Research Corporation (OAR).
  *
+ *  Copyright (c) 2012, 2016 embedded brains GmbH
+ *
  *  The license and distribution terms for this file may be
  *  found in the file LICENSE in this distribution or at
  *  http://www.rtems.org/license/LICENSE.
@@ -35,16 +37,28 @@
 extern "C" {
 #endif
 
-#if defined( RTEMS_SMP )
+#if defined(RTEMS_SMP)
+  #if defined(RTEMS_PROFILING)
+    #define PER_CPU_CONTROL_SIZE_APPROX ( 512 + CPU_INTERRUPT_FRAME_SIZE )
+  #elif defined(RTEMS_DEBUG)
+    #define PER_CPU_CONTROL_SIZE_APPROX ( 256 + CPU_INTERRUPT_FRAME_SIZE )
+  #else
+    #define PER_CPU_CONTROL_SIZE_APPROX ( 128 + CPU_INTERRUPT_FRAME_SIZE )
+  #endif
+
   /*
    * This ensures that on SMP configurations the individual per-CPU controls
    * are on different cache lines to prevent false sharing.  This define can be
    * used in assembler code to easily get the per-CPU control for a particular
    * processor.
    */
-  #if defined( RTEMS_PROFILING )
+  #if PER_CPU_CONTROL_SIZE_APPROX > 1024
+    #define PER_CPU_CONTROL_SIZE_LOG2 11
+  #elif PER_CPU_CONTROL_SIZE_APPROX > 512
+    #define PER_CPU_CONTROL_SIZE_LOG2 10
+  #elif PER_CPU_CONTROL_SIZE_APPROX > 256
     #define PER_CPU_CONTROL_SIZE_LOG2 9
-  #elif defined( RTEMS_DEBUG )
+  #elif PER_CPU_CONTROL_SIZE_APPROX > 128
     #define PER_CPU_CONTROL_SIZE_LOG2 8
   #else
     #define PER_CPU_CONTROL_SIZE_LOG2 7
@@ -348,6 +362,10 @@ typedef struct Per_CPU_Control {
    */
   volatile bool dispatch_necessary;
 
+#if defined(RTEMS_SMP)
+  CPU_Interrupt_frame Interrupt_frame;
+#endif
+
   /**
    * @brief The CPU usage timestamp contains the time point of the last heir
    * thread change or last CPU usage update of the executing thread of this
@@ -800,6 +818,10 @@ RTEMS_INLINE_ROUTINE struct _Thread_Control *_Thread_Get_executing( void )
   PER_CPU_OFFSET_EXECUTING + CPU_SIZEOF_POINTER
 #define PER_CPU_DISPATCH_NEEDED \
   PER_CPU_OFFSET_HEIR + CPU_SIZEOF_POINTER
+#if defined(RTEMS_SMP)
+#define PER_CPU_INTERRUPT_FRAME_AREA \
+  PER_CPU_DISPATCH_NEEDED + 4
+#endif
 
 #define THREAD_DISPATCH_DISABLE_LEVEL \
   (SYM(_Per_CPU_Information) + PER_CPU_THREAD_DISPATCH_DISABLE_LEVEL)
diff --git a/cpukit/score/src/percpuasm.c b/cpukit/score/src/percpuasm.c
index 29bdb13..2908643 100644
--- a/cpukit/score/src/percpuasm.c
+++ b/cpukit/score/src/percpuasm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012-2014 embedded brains GmbH.  All rights reserved.
+ * Copyright (c) 2012, 2016 embedded brains GmbH.  All rights reserved.
  *
  *  embedded brains GmbH
  *  Dornierstr. 4
@@ -110,6 +110,18 @@ RTEMS_STATIC_ASSERT(
   PER_CPU_DISPATCH_NEEDED
 );
 
+#if defined(RTEMS_SMP)
+RTEMS_STATIC_ASSERT(
+  offsetof(Per_CPU_Control, Interrupt_frame) == PER_CPU_INTERRUPT_FRAME_AREA,
+  PER_CPU_INTERRUPT_FRAME_AREA
+);
+
+RTEMS_STATIC_ASSERT(
+  sizeof( CPU_Interrupt_frame ) == CPU_INTERRUPT_FRAME_SIZE,
+  CPU_INTERRUPT_FRAME_SIZE
+);
+#endif
+
 #if CPU_ALLOCATE_INTERRUPT_STACK == TRUE \
   || CPU_HAS_SOFTWARE_INTERRUPT_STACK == TRUE
   RTEMS_STATIC_ASSERT(
-- 
1.8.4.5