end += (cpuinfo.dcache_line_size - 1);
end &= ~(cpuinfo.dcache_line_size - 1);
- for (addr = start; addr < end; addr += cpuinfo.dcache_line_size) {
- __asm__ __volatile__ (" flushda 0(%0)\n"
- : /* Outputs */
- : /* Inputs */ "r"(addr)
- /* : No clobber */);
- }
-}
-
-static void __flush_dcache_all(unsigned long start, unsigned long end)
-{
- unsigned long addr;
-
- start &= ~(cpuinfo.dcache_line_size - 1);
- end += (cpuinfo.dcache_line_size - 1);
- end &= ~(cpuinfo.dcache_line_size - 1);
-
if (end > start + cpuinfo.dcache_size)
end = start + cpuinfo.dcache_size;
end += (cpuinfo.dcache_line_size - 1);
end &= ~(cpuinfo.dcache_line_size - 1);
- if (end > start + cpuinfo.dcache_size)
- end = start + cpuinfo.dcache_size;
-
for (addr = start; addr < end; addr += cpuinfo.dcache_line_size) {
__asm__ __volatile__ (" initda 0(%0)\n"
: /* Outputs */
void flush_cache_all(void)
{
- __flush_dcache_all(0, cpuinfo.dcache_size);
+ __flush_dcache(0, cpuinfo.dcache_size);
__flush_icache(0, cpuinfo.icache_size);
}
void flush_icache_range(unsigned long start, unsigned long end)
{
+ __flush_dcache(start, end);
__flush_icache(start, end);
}
void flush_dcache_range(unsigned long start, unsigned long end)
{
__flush_dcache(start, end);
+ __flush_icache(start, end);
}
EXPORT_SYMBOL(flush_dcache_range);
unsigned long start = (unsigned long) page_address(page);
unsigned long end = start + PAGE_SIZE;
+ __flush_dcache(start, end);
__flush_icache(start, end);
}
__flush_icache(start, end);
}
+void __flush_dcache_page(struct address_space *mapping, struct page *page)
+{
+ /*
+ * Writeback any data associated with the kernel mapping of this
+ * page. This ensures that data in the physical page is mutually
+ * coherent with the kernels mapping.
+ */
+ unsigned long start = (unsigned long)page_address(page);
+
+ __flush_dcache(start, start + PAGE_SIZE);
+}
+
void flush_dcache_page(struct page *page)
{
struct address_space *mapping;
if (mapping && !mapping_mapped(mapping)) {
clear_bit(PG_dcache_clean, &page->flags);
} else {
- unsigned long start = (unsigned long)page_address(page);
-
- __flush_dcache_all(start, start + PAGE_SIZE);
- if (mapping)
+ __flush_dcache_page(mapping, page);
+ if (mapping) {
+ unsigned long start = (unsigned long)page_address(page);
flush_aliases(mapping, page);
+ flush_icache_range(start, start + PAGE_SIZE);
+ }
set_bit(PG_dcache_clean, &page->flags);
}
}
{
unsigned long pfn = pte_pfn(*pte);
struct page *page;
+ struct address_space *mapping;
if (!pfn_valid(pfn))
return;
if (page == ZERO_PAGE(0))
return;
- if (!PageReserved(page) &&
- !test_and_set_bit(PG_dcache_clean, &page->flags)) {
- unsigned long start = page_to_virt(page);
- struct address_space *mapping;
-
- __flush_dcache(start, start + PAGE_SIZE);
-
- mapping = page_mapping(page);
- if (mapping)
- flush_aliases(mapping, page);
+ mapping = page_mapping(page);
+ if (!test_and_set_bit(PG_dcache_clean, &page->flags))
+ __flush_dcache_page(mapping, page);
+
+ if(mapping)
+ {
+ flush_aliases(mapping, page);
+ if (vma->vm_flags & VM_EXEC)
+ flush_icache_page(vma, page);
}
}
struct page *to)
{
__flush_dcache(vaddr, vaddr + PAGE_SIZE);
+ __flush_icache(vaddr, vaddr + PAGE_SIZE);
copy_page(vto, vfrom);
__flush_dcache((unsigned long)vto, (unsigned long)vto + PAGE_SIZE);
+ __flush_icache((unsigned long)vto, (unsigned long)vto + PAGE_SIZE);
}
void clear_user_page(void *addr, unsigned long vaddr, struct page *page)
{
__flush_dcache(vaddr, vaddr + PAGE_SIZE);
+ __flush_icache(vaddr, vaddr + PAGE_SIZE);
clear_page(addr);
__flush_dcache((unsigned long)addr, (unsigned long)addr + PAGE_SIZE);
+ __flush_icache((unsigned long)addr, (unsigned long)addr + PAGE_SIZE);
}
void copy_from_user_page(struct vm_area_struct *vma, struct page *page,