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Diffstat (limited to 'arch/m68k/include/asm/tlbflush.h')
-rw-r--r--arch/m68k/include/asm/tlbflush.h86
1 files changed, 40 insertions, 46 deletions
diff --git a/arch/m68k/include/asm/tlbflush.h b/arch/m68k/include/asm/tlbflush.h
index 191e75a6bb24..6d42e2906887 100644
--- a/arch/m68k/include/asm/tlbflush.h
+++ b/arch/m68k/include/asm/tlbflush.h
@@ -13,13 +13,12 @@ static inline void flush_tlb_kernel_page(void *addr)
if (CPU_IS_COLDFIRE) {
mmu_write(MMUOR, MMUOR_CNL);
} else if (CPU_IS_040_OR_060) {
- mm_segment_t old_fs = get_fs();
- set_fs(KERNEL_DS);
+ set_fc(SUPER_DATA);
__asm__ __volatile__(".chip 68040\n\t"
"pflush (%0)\n\t"
".chip 68k"
: : "a" (addr));
- set_fs(old_fs);
+ set_fc(USER_DATA);
} else if (CPU_IS_020_OR_030)
__asm__ __volatile__("pflush #4,#4,(%0)" : : "a" (addr));
}
@@ -84,12 +83,8 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
{
- if (vma->vm_mm == current->active_mm) {
- mm_segment_t old_fs = get_fs();
- set_fs(USER_DS);
+ if (vma->vm_mm == current->active_mm)
__flush_tlb_one(addr);
- set_fs(old_fs);
- }
}
static inline void flush_tlb_range(struct vm_area_struct *vma,
@@ -117,53 +112,51 @@ extern unsigned char pmeg_ctx[SUN3_PMEGS_NUM];
sun?) */
static inline void flush_tlb_all(void)
{
- unsigned long addr;
- unsigned char ctx, oldctx;
-
- oldctx = sun3_get_context();
- for(addr = 0x00000000; addr < TASK_SIZE; addr += SUN3_PMEG_SIZE) {
- for(ctx = 0; ctx < 8; ctx++) {
- sun3_put_context(ctx);
- sun3_put_segmap(addr, SUN3_INVALID_PMEG);
- }
- }
-
- sun3_put_context(oldctx);
- /* erase all of the userspace pmeg maps, we've clobbered them
- all anyway */
- for(addr = 0; addr < SUN3_INVALID_PMEG; addr++) {
- if(pmeg_alloc[addr] == 1) {
- pmeg_alloc[addr] = 0;
- pmeg_ctx[addr] = 0;
- pmeg_vaddr[addr] = 0;
- }
- }
+ unsigned long addr;
+ unsigned char ctx, oldctx;
+ oldctx = sun3_get_context();
+ for (addr = 0x00000000; addr < TASK_SIZE; addr += SUN3_PMEG_SIZE) {
+ for (ctx = 0; ctx < 8; ctx++) {
+ sun3_put_context(ctx);
+ sun3_put_segmap(addr, SUN3_INVALID_PMEG);
+ }
+ }
+
+ sun3_put_context(oldctx);
+ /* erase all of the userspace pmeg maps, we've clobbered them
+ all anyway */
+ for (addr = 0; addr < SUN3_INVALID_PMEG; addr++) {
+ if (pmeg_alloc[addr] == 1) {
+ pmeg_alloc[addr] = 0;
+ pmeg_ctx[addr] = 0;
+ pmeg_vaddr[addr] = 0;
+ }
+ }
}
/* Clear user TLB entries within the context named in mm */
static inline void flush_tlb_mm (struct mm_struct *mm)
{
- unsigned char oldctx;
- unsigned char seg;
- unsigned long i;
-
- oldctx = sun3_get_context();
- sun3_put_context(mm->context);
+ unsigned char oldctx;
+ unsigned char seg;
+ unsigned long i;
- for(i = 0; i < TASK_SIZE; i += SUN3_PMEG_SIZE) {
- seg = sun3_get_segmap(i);
- if(seg == SUN3_INVALID_PMEG)
- continue;
+ oldctx = sun3_get_context();
+ sun3_put_context(mm->context);
- sun3_put_segmap(i, SUN3_INVALID_PMEG);
- pmeg_alloc[seg] = 0;
- pmeg_ctx[seg] = 0;
- pmeg_vaddr[seg] = 0;
- }
+ for (i = 0; i < TASK_SIZE; i += SUN3_PMEG_SIZE) {
+ seg = sun3_get_segmap(i);
+ if (seg == SUN3_INVALID_PMEG)
+ continue;
- sun3_put_context(oldctx);
+ sun3_put_segmap(i, SUN3_INVALID_PMEG);
+ pmeg_alloc[seg] = 0;
+ pmeg_ctx[seg] = 0;
+ pmeg_vaddr[seg] = 0;
+ }
+ sun3_put_context(oldctx);
}
/* Flush a single TLB page. In this case, we're limited to flushing a
@@ -213,6 +206,7 @@ static inline void flush_tlb_range (struct vm_area_struct *vma,
next:
start += SUN3_PMEG_SIZE;
}
+ sun3_put_context(oldctx);
}
static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
@@ -263,7 +257,7 @@ static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr
BUG();
}
-static inline void flush_tlb_range(struct mm_struct *mm,
+static inline void flush_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
BUG();