[LV-kern-commit] CVS: kernel-2.4/include/asm-vax/mm mmu_context.h,1.2,1.3

[Dave A. <ai...@us...>]

Update of /cvsroot/linux-vax/kernel-2.4/include/asm-vax/mm
In directory usw-pr-cvs1:/tmp/cvs-serv17853/include/asm-vax/mm

Modified Files:
	mmu_context.h 
Log Message:
DA: woops .. forgot to set thread p0/p1 br/lr.. probably have somewhere else
to do is.. not sure if this is the correct spot .. 



Index: mmu_context.h
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/include/asm-vax/mm/mmu_context.h,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- mmu_context.h	2001/05/19 12:04:25	1.2
+++ mmu_context.h	2001/06/09 18:00:25	1.3
@@ -1,3 +1,6 @@
+/* Copyright (C) May 2001 - Dave Airlie - Vax project - ai...@li... 
+   derived I'm sure from somewhere ... */
+
 #ifndef _ASM_VAX_MMU_CONTEXT_H
 #define _ASM_VAX_MMU_CONTEXT_H
 
@@ -14,19 +17,32 @@
 {
 }
 
+/*
+ * switch_mm implementation 
+ * copy the thread P0/P1 registers into the corresponding CPU registers
+ *   - not sure if this is complete - D.A. May 2001
+ */
+
 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
                              struct task_struct *tsk, unsigned cpu)
 {
-	if (prev!=next) {
-	  clear_bit(cpu, &prev->cpu_vm_mask);	
-	  __mtpr(next->pgd[0].br, PR_P0BR);
-	  __mtpr((next->pgd[0].lr * 8 | 0x04000000), PR_P0LR);
-	  __mtpr(next->pgd[1].br, PR_P1BR);
-	  __mtpr((next->pgd[1].lr * 8), PR_P1LR);
-	  flush_tlb_all();
+  if (prev!=next) {
+    clear_bit(cpu, &prev->cpu_vm_mask);	
+
+    tsk->thread.pcb.p0br = (next->pgd[0]).br;
+    tsk->thread.pcb.p0lr = (next->pgd[0]).lr * 8 | 0x04000000;
+    tsk->thread.pcb.p1br = (next->pgd[1]).br;
+    tsk->thread.pcb.p1lr = (next->pgd[1]).lr * 8;
+
+    __mtpr(next->pgd[0].br, PR_P0BR);
+    __mtpr((next->pgd[0].lr * 8), PR_P0LR);
+    __mtpr(next->pgd[1].br, PR_P1BR);
+    __mtpr((next->pgd[1].lr * 8), PR_P1LR);
     
-	}
-	set_bit(cpu, &next->cpu_vm_mask);
+    flush_tlb_all();
+  }
+  set_bit(cpu, &next->cpu_vm_mask);
+
 }
 
 extern inline void activate_mm(struct mm_struct *prev,