Changes in kernel/arch/mips32/include/exception.h [598f90e:7a0359b] in mainline

File:

• kernel/arch/mips32/include/exception.h (modified) (2 diffs)

kernel/arch/mips32/include/exception.h

@@ -37 +37 @@
 
 #include <typedefs.h>
-#include <arch/istate.h>
+#include <arch/cp0.h>
+#include <trace.h>
 
 #define EXC_Int    0
@@ -58 +59 @@
 #define EXC_VCED   31
 
+typedef struct istate {
+        uint32_t at;
+        uint32_t v0;
+        uint32_t v1;
+        uint32_t a0;
+        uint32_t a1;
+        uint32_t a2;
+        uint32_t a3;
+        uint32_t t0;
+        uint32_t t1;
+        uint32_t t2;
+        uint32_t t3;
+        uint32_t t4;
+        uint32_t t5;
+        uint32_t t6;
+        uint32_t t7;
+        uint32_t t8;
+        uint32_t t9;
+        uint32_t gp;
+        uint32_t sp;
+        uint32_t ra;
+        
+        uint32_t lo;
+        uint32_t hi;
+        
+        uint32_t status;  /* cp0_status */
+        uint32_t epc;     /* cp0_epc */
+        uint32_t k1;      /* We use it as thread-local pointer */
+} istate_t;
+
+NO_TRACE static inline void istate_set_retaddr(istate_t *istate,
+    uintptr_t retaddr)
+{
+        istate->epc = retaddr;
+}
+
+/** Return true if exception happened while in userspace */
+NO_TRACE static inline int istate_from_uspace(istate_t *istate)
+{
+        return istate->status & cp0_status_um_bit;
+}
+
+NO_TRACE static inline unative_t istate_get_pc(istate_t *istate)
+{
+        return istate->epc;
+}
+
+NO_TRACE static inline unative_t istate_get_fp(istate_t *istate)
+{
+        /* FIXME */
+        
+        return 0;
+}
+
 extern void exception(istate_t *istate);
 extern void tlb_refill_entry(void);