Commit 4f073eff authored by Jesper Nilsson's avatar Jesper Nilsson

CRIS v10: Don't call get_mmu_context when switching between tasks with shared memory descriptors

Also, cleanup formatting and fix whitespace errors.
parent 40316c1f
......@@ -4,7 +4,7 @@
* Low level TLB handling
*
*
* Copyright (C) 2000-2002 Axis Communications AB
* Copyright (C) 2000-2007 Axis Communications AB
*
* Authors: Bjorn Wesen (bjornw@axis.com)
*
......@@ -39,7 +39,7 @@ flush_tlb_all(void)
unsigned long flags;
/* the vpn of i & 0xf is so we dont write similar TLB entries
* in the same 4-way entry group. details..
* in the same 4-way entry group. details...
*/
local_irq_save(flags);
......@@ -96,9 +96,7 @@ flush_tlb_mm(struct mm_struct *mm)
/* invalidate a single page */
void
flush_tlb_page(struct vm_area_struct *vma,
unsigned long addr)
void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
{
struct mm_struct *mm = vma->vm_mm;
int page_id = mm->context.page_id;
......@@ -172,12 +170,11 @@ init_new_context(struct task_struct *tsk, struct mm_struct *mm)
/* called in schedule() just before actually doing the switch_to */
void
switch_mm(struct mm_struct *prev, struct mm_struct *next,
void switch_mm(struct mm_struct *prev, struct mm_struct *next,
struct task_struct *tsk)
{
if (prev != next) {
/* make sure we have a context */
get_mmu_context(next);
/* remember the pgd for the fault handlers
......@@ -191,8 +188,11 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next,
/* switch context in the MMU */
D(printk("switching mmu_context to %d (%p)\n", next->context, next));
D(printk(KERN_DEBUG "switching mmu_context to %d (%p)\n",
next->context, next));
*R_MMU_CONTEXT = IO_FIELD(R_MMU_CONTEXT, page_id, next->context.page_id);
*R_MMU_CONTEXT = IO_FIELD(R_MMU_CONTEXT,
page_id, next->context.page_id);
}
}
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