GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-25 16:11:45 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

sh: Revert lazy dcache writeback changes.

Browse source 
These ended up causing too many problems on older parts,
revert for now..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2007-03-05 19:46:47 +09:00
parent c87a711134
commit 39e688a94b
13 changed files with 194 additions and 85 deletions
Download patch file Download diff file Expand all files Collapse all files

12
arch/sh/mm/cache-sh4.c
View file

@ -237,20 +237,10 @@ static inline void flush_cache_4096(unsigned long start,
/*
* Write back & invalidate the D-cache of the page.
* (To avoid "alias" issues)
*
* This uses a lazy write-back on UP, which is explicitly
* disabled on SMP.
*/
void flush_dcache_page(struct page *page)
{
#ifndef CONFIG_SMP
struct address_space *mapping = page_mapping(page);
if (mapping && !mapping_mapped(mapping))
set_bit(PG_dcache_dirty, &page->flags);
else
#endif
{
if (test_bit(PG_mapped, &page->flags)) {
unsigned long phys = PHYSADDR(page_address(page));
unsigned long addr = CACHE_OC_ADDRESS_ARRAY;
int i, n;