Re: [PATCH -V1 4/9] arch/powerpc: Use vsid and segment offset to represent virtual address
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2012-06-29 21:45:48
On Fri, 2012-06-29 at 19:47 +0530, Aneesh Kumar K.V wrote:
+/* 78 bit power virtual address */
struct virt_addr {
- unsigned long addr;
+ unsigned long vsid;
+ unsigned long seg_off;
};Do we really need to do that ? It's really nasty... We are trying to add only a few bits, we get 12 for free by just using a page number (4k based always, not PAGE_SHIFT based btw) no ? That should get us going for a while.... Cheers, Ben.