Kernel/armv7 - Added IRQ stack, changed IRQs to be disabled until after handling

[tpg/acess2.git] / Kernel / arch / armv7 / proc.c

diff --git a/Kernel/arch/armv7/proc.c b/Kernel/arch/armv7/proc.c
index 7dfbb45..318cabd 100644 (file)
--- a/Kernel/arch/armv7/proc.c
+++ b/Kernel/arch/armv7/proc.c
@@ -30,6 +30,8 @@ void ArchThreads_Init(void)
 
 void Proc_IdleThread(void *unused)
 {
+       Threads_SetPriority(gpIdleThread, -1);
+       Threads_SetName("Idle Thread");
        for(;;) {
                __asm__ __volatile__ ("wfi");
                Proc_Reschedule();
@@ -65,7 +67,32 @@ void Proc_StartUser(Uint Entrypoint, Uint *Bases, int ArgC, char **ArgV, char **
 
 tTID Proc_SpawnWorker( void (*Fnc)(void*), void *Ptr )
 {
-       return -1;
+       tThread *new;
+       Uint32  sp;
+
+       new = Threads_CloneTCB(NULL, 0);
+       if(!new)        return -1;
+
+       new->KernelStack = MM_NewKStack(1);
+       if(!new->KernelStack) {
+               // TODO: Delete thread
+               Log_Error("Proc", "Unable to allocate kernel stack");
+               return -1;
+       }       
+
+       sp = new->KernelStack;
+       
+       *(Uint32*)(sp -= 4) = (Uint)Ptr;
+       *(Uint32*)(sp -= 4) = 1;
+       *(Uint32*)(sp -= 4) = (Uint)Fnc;
+       *(Uint32*)(sp -= 4) = (Uint)new;
+
+       new->SavedState.SP = sp;
+       new->SavedState.IP = (Uint)KernelThreadHeader;
+
+       Threads_AddActive(new);
+
+       return new->TID;
 }
 
 tTID Proc_NewKThread( void (*Fnc)(void*), void *Ptr )
@@ -76,6 +103,7 @@ tTID Proc_NewKThread( void (*Fnc)(void*), void *Ptr )
        new = Threads_CloneTCB(NULL, 0);
        if(!new)        return -1;
 
+       // TODO: Non-shared stack
        new->KernelStack = MM_NewKStack(1);
        if(!new->KernelStack) {
                // TODO: Delete thread
@@ -85,10 +113,10 @@ tTID Proc_NewKThread( void (*Fnc)(void*), void *Ptr )
 
        sp = new->KernelStack;
        
-       *(Uint32*)(sp -= 4) = (Uint)new;
-       *(Uint32*)(sp -= 4) = (Uint)Fnc;
-       *(Uint32*)(sp -= 4) = 1;
        *(Uint32*)(sp -= 4) = (Uint)Ptr;
+       *(Uint32*)(sp -= 4) = 1;
+       *(Uint32*)(sp -= 4) = (Uint)Fnc;
+       *(Uint32*)(sp -= 4) = (Uint)new;
 
        new->SavedState.SP = sp;
        new->SavedState.IP = (Uint)KernelThreadHeader;
@@ -113,7 +141,8 @@ void Proc_Reschedule(void)
        if(!next)       next = gpIdleThread;
        if(!next || next == cur)        return;
 
-       Log("Switching to %p (%i) IP=%p SP=%p", next, next->TID, next->SavedState.IP, next->SavedState.SP);
+       Log("Switching to %p (%i %s) IP=%p SP=%p", next, next->TID, next->ThreadName, next->SavedState.IP, next->SavedState.SP);
+       Log("Requested by %p", __builtin_return_address(0));
        
        gpCurrentThread = next;
        // TODO: Change kernel stack?