On Sun, Mar 28, 2010 at 09:16:01PM +0300, Pauli Nieminen wrote:
On AGP system we might allocate/free routinely uncached or wc memory,
changing page from cached (wb) to uc or wc is very expensive and involves
a lot of flushing. To improve performance this allocator use a pool
of uc,wc pages.
On Thu, Apr 1, 2010 at 12:52 PM, Jerome Glisse gli...@freedesktop.org wrote:
On Sun, Mar 28, 2010 at 09:16:01PM +0300, Pauli Nieminen wrote:
On AGP system we might allocate/free routinely uncached or wc memory,
changing page from cached (wb) to uc or wc is very expensive and involves
a lot of
On AGP system we might allocate/free routinely uncached or wc memory,
changing page from cached (wb) to uc or wc is very expensive and involves
a lot of flushing. To improve performance this allocator use a pool
of uc,wc pages.
Pools are protected with spinlocks to allow multiple threads to
