Update of /cvsroot/linux-mips/linux/arch/mips/mm
In directory usw-pr-cvs1:/tmp/cvs-serv13623
Modified Files:
c-r3k.c
Log Message:
Optimize R3k cache routines mostly by removing useless code.
Index: c-r3k.c
===================================================================
RCS file: /cvsroot/linux-mips/linux/arch/mips/mm/c-r3k.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -d -r1.1 -r1.2
--- c-r3k.c 2001/10/23 17:20:14 1.1
+++ c-r3k.c 2001/10/30 17:46:57 1.2
@@ -235,66 +235,23 @@
r3k_flush_icache_range(KSEG0, KSEG0 + icache_size);
}
-static void r3k_flush_cache_mm(struct mm_struct *mm)
+static inline void r3k___flush_cache_all(void)
{
- if (mm->context != 0) {
+ r3k_flush_icache_range(KSEG0, KSEG0 + icache_size);
+}
-#ifdef DEBUG_CACHE
- printk("cmm[%d]", (int)mm->context);
-#endif
- r3k_flush_cache_all();
- }
+static void r3k_flush_cache_mm(struct mm_struct *mm)
+{
}
static void r3k_flush_cache_range(struct mm_struct *mm, unsigned long start,
unsigned long end)
{
- struct vm_area_struct *vma;
-
- if (mm->context == 0)
- return;
-
- start &= PAGE_MASK;
-#ifdef DEBUG_CACHE
- printk("crange[%d,%08lx,%08lx]", (int)mm->context, start, end);
-#endif
- vma = find_vma(mm, start);
- if (!vma)
- return;
-
- if (mm->context != current->active_mm->context) {
- flush_cache_all();
- } else {
- unsigned long flags, physpage;
-
- save_and_cli(flags);
- while (start < end) {
- if ((physpage = get_phys_page(start, mm)))
- r3k_flush_icache_range(physpage,
- physpage + PAGE_SIZE);
- start += PAGE_SIZE;
- }
- restore_flags(flags);
- }
}
static void r3k_flush_cache_page(struct vm_area_struct *vma,
unsigned long page)
{
- struct mm_struct *mm = vma->vm_mm;
-
- if (mm->context == 0)
- return;
-
-#ifdef DEBUG_CACHE
- printk("cpage[%d,%08lx]", (int)mm->context, page);
-#endif
- if (vma->vm_flags & VM_EXEC) {
- unsigned long physpage;
-
- if ((physpage = get_phys_page(page, vma->vm_mm)))
- r3k_flush_icache_range(physpage, physpage + PAGE_SIZE);
- }
}
static void r3k_flush_page_to_ram(struct page * page)
@@ -368,7 +325,7 @@
r3k_probe_cache();
_flush_cache_all = r3k_flush_cache_all;
- ___flush_cache_all = r3k_flush_cache_all;
+ ___flush_cache_all = r3k___flush_cache_all;
_flush_cache_mm = r3k_flush_cache_mm;
_flush_cache_range = r3k_flush_cache_range;
_flush_cache_page = r3k_flush_cache_page;
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