Re: [PATCH 5/9] powerpc/vmemmap: Add altmap support

2017-04-11 Thread Balbir Singh
On Wed, 2017-04-12 at 03:42 +1000, Oliver O'Halloran wrote: > Adds support to powerpc for the altmap feature of ZONE_DEVICE memory. An > altmap is a driver provided region that is used to provide the backing > storage for the struct pages of ZONE_DEVICE memory. In situations where > large amount of

[PATCH 5/9] powerpc/vmemmap: Add altmap support

2017-04-11 Thread Oliver O'Halloran
Adds support to powerpc for the altmap feature of ZONE_DEVICE memory. An altmap is a driver provided region that is used to provide the backing storage for the struct pages of ZONE_DEVICE memory. In situations where large amount of ZONE_DEVICE memory is being added to the system the altmap reduces