Changeset 216 for soft/giet_vm/sys

Timestamp:

Sep 18, 2012, 6:38:49 PM (12 years ago)

Author:

karaoui

Message:

• updating irq_handler.c/drivers.c to support the nex affectations of timers
• When using an xicu the number of timer is set to 32

Location:

soft/giet_vm/sys

Files:

• drivers.c (modified) (5 diffs)
• irq_handler.c (modified) (5 diffs)
• kernel_init.c (modified) (3 diffs)

soft/giet_vm/sys/drivers.c

@@ -78 +78 @@
 #endif
 
-#if ( (NB_TIMERS_MAX + NB_PROCS_MAX) > 32 )
+#if ( (NB_TIMERS_MAX) > 32 )
 # error: NB_TIMERS_MAX + NB_PROCS_MAX cannot be larger than 32
 #endif
@@ -111 +111 @@
 //   local_id in [0, NB_PROCS_MAX-1],
 // - "user" timers : requested by the task in the mapping_info data structure.
-//   local_id in [NB_PROC_MAX, NB_PROCS_MAX + NB_TIMERS_MAX - 1]
 //   For each user timer, the timer_id is stored in the context of the task.
 // The global index is cluster_id * (NB_PROCS_MAX+NB_TIMERS_MAX) + local_id
@@ -136 +135 @@
 {
     // parameters checking 
-    if ( cluster_id >= NB_CLUSTERS)                                     return 1;
-    if ( local_id >= NB_TIMERS_MAX + NB_PROCS_MAX ) return 1;
+    if ( cluster_id >= NB_CLUSTERS)     return 1;
+    if ( local_id >= NB_TIMERS_MAX) return 2;
 
 #if USE_XICU
@@ -164 +163 @@
 {
     // parameters checking 
-    if ( cluster_id >= NB_CLUSTERS)                                     return 1;
-    if ( local_id >= NB_TIMERS_MAX + NB_PROCS_MAX ) return 1;
+    if ( cluster_id >= NB_CLUSTERS)      return 1;
+    if ( local_id >= NB_TIMERS_MAX ) return 2;
 
 #if USE_XICU
@@ -193 +192 @@
 {
     // parameters checking 
-    if ( cluster_id >= NB_CLUSTERS)                                     return 1;
-    if ( local_id >= NB_TIMERS_MAX + NB_PROCS_MAX ) return 1;
+    if ( cluster_id >= NB_CLUSTERS)      return 1;
+    if ( local_id >= NB_TIMERS_MAX ) return 2;
 
 #if USE_XICU

soft/giet_vm/sys/irq_handler.c

@@ -45 +45 @@
     unsigned int        irq_id;
 
+
     // get the highest priority active IRQ index 
     if ( _icu_get_index( pid / NB_PROCS_MAX,
@@ -55 +56 @@
     }
 
+
     if ( irq_id < 32 )  // do nothing if no interrupt active 
     {
@@ -60 +62 @@
         unsigned int isr_id     = entry & 0x000000FF;
         unsigned int channel_id = (entry>>16) & 0x0000FFFF;
-        if      ( isr_id == ISR_SWITCH  ) _isr_switch();
+        if      ( isr_id == ISR_SWITCH  ) _isr_switch( channel_id );
         else if ( isr_id == ISR_IOC     ) _isr_ioc();
         else if ( isr_id == ISR_DMA     ) _isr_dma( channel_id );
@@ -169 +171 @@
     // aknowledge IRQ 
     if ( _timer_reset_irq( cluster_id, 
-                           NB_PROCS_MAX + timer_id ) )
+                           timer_id ) )
     {
         _get_lock(&_tty_put_lock);
@@ -230 +232 @@
 // The ISR acknowledges the IRQ and calls the _ctx_switch() function.
 /////////////////////////////////////////////////////////////////////////////////////
-void _isr_switch()
+void _isr_switch( unsigned int timer_id)
 {
     // get cluster index and proc local index
-    unsigned int pid        = _procid();
-    unsigned int local_id   = pid % NB_PROCS_MAX;
-    unsigned int cluster_id = pid / NB_PROCS_MAX;
+    unsigned int cluster_id = _procid() / NB_PROCS_MAX;
 
     // acknowledge IRQ
-    if ( _timer_reset_irq( cluster_id, local_id ) ) 
+    if ( _timer_reset_irq( cluster_id, timer_id ) ) 
     {
         _get_lock(&_tty_put_lock);

soft/giet_vm/sys/kernel_init.c

@@ -124 +124 @@
     }
  
+    unsigned int isr_switch_channel = 0xFFFFFFFF;
+
     // step 3 : compute and set ICU masks
     //          there is at most 32 interrupts per processor
@@ -131 +133 @@
     unsigned int hwi_mask = 0;
     unsigned int pti_mask = 0;
-
-    unsigned int isr_switch_channel = 0xFFFFFFFF;
 
     for ( irq_id = 0 ; irq_id < 32 ; irq_id++ )
@@ -173 +173 @@
         if(isr_switch_channel == 0xFFFFFFFF)
         {
+            _get_lock(&_tty_put_lock);
             _puts("\n[GIET ERROR] ISR_SWITCH not found on proc ");
             _putd( proc_id);
             _puts("\n");
+            _release_lock(&_tty_put_lock);
             _sys_exit();
         }
-        _timer_start( cluster_id, 
-                      isr_switch_channel, 
-                      GIET_TICK_VALUE );
+
+        if(_timer_start( cluster_id, isr_switch_channel, GIET_TICK_VALUE ))
+        {
+            _get_lock(&_tty_put_lock);
+            _puts("\n[GIET ERROR] ISR_SWITCH init error for proc ");
+            _putd( proc_id);
+            _puts("\n");
+            _release_lock(&_tty_put_lock);
+            _sys_exit();
+        }
         
 #if GIET_DEBUG_INIT