#endif
vaddr = __fix_to_virt(FIX_CMAP_END - idx);
pte = mk_pte(page, PAGE_KERNEL);
-#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1)
+#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32)
entrylo = pte.pte_high;
#else
entrylo = pte_val(pte) >> 6;
void *vfrom, *vto;
vto = kmap_atomic(to, KM_USER1);
- if (cpu_has_dc_aliases && page_mapped(from)) {
+ if (cpu_has_dc_aliases &&
+ page_mapped(from) && !Page_dcache_dirty(from)) {
vfrom = kmap_coherent(from, vaddr);
copy_page(vto, vfrom);
kunmap_coherent();
copy_page(vto, vfrom);
kunmap_atomic(vfrom, KM_USER0);
}
- if (((vma->vm_flags & VM_EXEC) && !cpu_has_ic_fills_f_dc) ||
+ if ((!cpu_has_ic_fills_f_dc) ||
pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK))
flush_data_cache_page((unsigned long)vto);
kunmap_atomic(vto, KM_USER1);
smp_wmb();
}
-EXPORT_SYMBOL(copy_user_highpage);
-
void copy_to_user_page(struct vm_area_struct *vma,
struct page *page, unsigned long vaddr, void *dst, const void *src,
unsigned long len)
{
- if (cpu_has_dc_aliases && page_mapped(page)) {
+ if (cpu_has_dc_aliases &&
+ page_mapped(page) && !Page_dcache_dirty(page)) {
void *vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
memcpy(vto, src, len);
kunmap_coherent();
flush_cache_page(vma, vaddr, page_to_pfn(page));
}
-EXPORT_SYMBOL(copy_to_user_page);
-
void copy_from_user_page(struct vm_area_struct *vma,
struct page *page, unsigned long vaddr, void *dst, const void *src,
unsigned long len)
{
- if (cpu_has_dc_aliases && page_mapped(page)) {
+ if (cpu_has_dc_aliases &&
+ page_mapped(page) && !Page_dcache_dirty(page)) {
void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
memcpy(dst, vfrom, len);
kunmap_coherent();
}
}
-EXPORT_SYMBOL(copy_from_user_page);
-
-
#ifdef CONFIG_HIGHMEM
unsigned long highstart_pfn, highend_pfn;