Changeset c7c0b89b in mainline for arch/mips32

Timestamp:

2006-04-22T18:05:16Z (19 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

613bc54

Parents:

68091bd

Message:

Added uspace call to enable/disable interrupts.

Location:

arch/mips32/src

Files:

• ddi/ddi.c (modified) (2 diffs)
• start.S (modified) (2 diffs)

arch/mips32/src/ddi/ddi.c

@@ -31 +31 @@
 #include <arch/types.h>
 #include <typedefs.h>
+#include <security/cap.h>
+#include <arch.h>
+#include <arch/cp0.h>
 
 /** Enable I/O space range for task.
@@ -46 +49 @@
         return 0;
 }
+
+/** Enable/disable interrupts form syscall
+ *
+ * @param enable If non-zero, interrupts are enabled, otherwise disabled
+ * @param flags CP0 flags register
+ */
+__native ddi_int_control_arch(__native enable, __native *flags)
+{
+        if (enable)
+                *flags |= cp0_status_ie_enabled_bit;
+        else
+                *flags &= ~cp0_status_ie_enabled_bit;
+        return 0;
+}

arch/mips32/src/start.S

@@ -252 +252 @@
         mtc0 $t0, $status
 
+        li $t4, 2                   # SYS_INT_CONTROL
+        beq $t4, $v0, sysc_int_control
+        nop
+        
         # CALL Syscall handler
         jal syscall_handler
         sw $v0, SS_ARG4($sp)        # save v0 - arg4 to stack
 
+sysc_exit:      
         # restore status
         mfc0 $t0, $status
@@ -276 +281 @@
         eret
         
+sysc_int_control:
+        jal ddi_int_control
+        addi $a1, $sp, SS_STATUS
+        
+        j sysc_exit
+        nop
+        
 tlb_refill_handler:
         KERNEL_STACK_TO_K0