Changeset 279 for trunk/hal/tsar_mips32/core/hal_special.c

Timestamp:

Jul 27, 2017, 12:23:29 AM (7 years ago)

Author:

alain

Message:

1) Introduce independant command fields for the various devices in the thread descriptor.
2) Introduce a new dev_pic_enable_ipi() function in the generic PIC device
3) Fix two bugs identified by Maxime in the scheduler initialisation, and in the sched_select().
4) fix several bugs in the TSAR hal_kentry.S.
5) Introduce a third kgiet segment (besides kdata and kcode) in the TSAR bootloader.

File:

• trunk/hal/tsar_mips32/core/hal_special.c (modified) (5 diffs)

trunk/hal/tsar_mips32/core/hal_special.c

@@ -32 +32 @@
 struct thread_s;
 
+/////////////////////////////////
+void hal_set_ebase( reg_t  base )
+{ 
+        asm volatile ("mtc0    %0,  $15,  1" : : "r" (base));
+}
 
 //////////////////////////
@@ -48 +53 @@
     cycle_t count;
 
-        asm volatile ("mfc0   %0,  $9  " : "=&r" (count));
+        asm volatile ("mfc0   %0,  $9" : "=&r" (count));
 
     return count;
+}
+
+/////////////////////////
+inline reg_t hal_get_sr()
+{
+    register uint32_t sr;
+
+        asm volatile ("mfc0    %0,    $12" : "=&r" (sr));
+
+        return sr;
 }
 
@@ -90 +105 @@
         void * thread_ptr;
  
-        asm volatile
-    ( "mfc0    %0,  $4,  2  \n"
-      : "=&r" (thread_ptr)  );
+        asm volatile ("mfc0    %0,  $4,  2" : "=&r" (thread_ptr));
 
         return thread_ptr;
@@ -100 +113 @@
 void hal_set_current_thread( struct thread_s * thread )
 { 
-        asm volatile
-    ( "mtc0    %0,  $4,  2  \n"
-      : : "r" (thread) );
+        asm volatile ("mtc0    %0,  $4,  2" : : "r" (thread));
 }
 
@@ -135 +146 @@
         register uint32_t sp;
   
-        asm volatile
-        ( "or    %0,   $0,   $29  \n" 
-       : "=&r" (sp) );
+        asm volatile ("or    %0,   $0,   $29" : "=&r" (sp));
   
         return sp;