15 Feb
2011
15 Feb
'11
10:42 p.m.
On 15 February 2011 16:46, Russell King - ARM Linux linux@arm.linux.org.uk wrote:
On Tue, Feb 15, 2011 at 04:11:09PM +0100, Per Forlin wrote:
True. In my case write back is disable but read back is enable, that's why I didn't consider it.
What do you mean "write back is disable" ? You can only prevent writebacks by using a write-through cache.
I meant "no write allocate"
Any writeback cache, whether in read-allocate or read-write-allocate mode will have writebacks.
Yepp, this is where I jumped to conclusions. I thought there would be no writebacks if using "no write allocate". Now that I look at the cache documentation again it feels so obvious.
Thanks for explaining this to me, Per