Re: [PATCH 9/9] powerpc: A new cache shape aux vectors
flat view
From: Segher Boessenkool <hidden>
Date: 2017-01-10 13:16:07
On Wed, Jan 04, 2017 at 04:15:35PM +1100, Benjamin Herrenschmidt wrote:
+ * For all these fields, a value of 0 means that the information + * is not known.
quoted hunk ↗ jump to hunk
+ if (sets == 0) + info->assoc = 0xffff; + else
...
Is this correct? A fully associative cache should be encoded as sets == 1,
if there are buggy firmwares that set it to 0 instead it should do the same
as 1 here I think? Or is 0xffff indicating "unknown" here... But in that
case the comment above says assoc should be 0 instead.
Segher