Pauli Nieminen wrote:
> 2010/3/19 Thomas Hellström :
>
>> Pauli, Dave and Jerome,
>>
>> Before reviewing this, Could you describe a bit how this interfaces with the
>> TTM memory accounting. It's important for some systems to be able to set a
>> limit beyond which TTM may not pin any pages.
>>
>
2010/3/19 Thomas Hellström :
> Pauli, Dave and Jerome,
>
> Before reviewing this, Could you describe a bit how this interfaces with the
> TTM memory accounting. It's important for some systems to be able to set a
> limit beyond which TTM may not pin any pages.
>
> Am I right in assuming that TTM me
When allocating wc/uc pages cache state transition requires cache flush which
is expensive operation. To avoid cache flushes allocation of wc/uc pages should
be done in large groups when only single cache flush is required for whole group
of pages.
In some cases drivers need t oallocate and deallo