Re: [PATCH v2 05/10] DMA, CMA: support arbitrary bitmap granularity

2014-06-15 Thread Joonsoo Kim
On Thu, Jun 12, 2014 at 12:19:54PM +0200, Michal Nazarewicz wrote: > On Thu, Jun 12 2014, Joonsoo Kim wrote: > > ppc kvm's cma region management requires arbitrary bitmap granularity, > > since they want to reserve very large memory and manage this region > > with bitmap that one bit for several p

Re: [PATCH v2 05/10] DMA, CMA: support arbitrary bitmap granularity

2014-06-14 Thread Aneesh Kumar K.V
Joonsoo Kim writes: > ppc kvm's cma region management requires arbitrary bitmap granularity, > since they want to reserve very large memory and manage this region > with bitmap that one bit for several pages to reduce management overheads. > So support arbitrary bitmap granularity for following g

Re: [PATCH v2 05/10] DMA, CMA: support arbitrary bitmap granularity

2014-06-12 Thread Michal Nazarewicz
On Thu, Jun 12 2014, Joonsoo Kim wrote: > ppc kvm's cma region management requires arbitrary bitmap granularity, > since they want to reserve very large memory and manage this region > with bitmap that one bit for several pages to reduce management overheads. > So support arbitrary bitmap granular

Re: [PATCH v2 05/10] DMA, CMA: support arbitrary bitmap granularity

2014-06-12 Thread Zhang Yanfei
On 06/12/2014 11:21 AM, Joonsoo Kim wrote: > ppc kvm's cma region management requires arbitrary bitmap granularity, > since they want to reserve very large memory and manage this region > with bitmap that one bit for several pages to reduce management overheads. > So support arbitrary bitmap granul

Re: [PATCH v2 05/10] DMA, CMA: support arbitrary bitmap granularity

2014-06-12 Thread Joonsoo Kim
On Thu, Jun 12, 2014 at 04:08:11PM +0900, Minchan Kim wrote: > On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote: > > ppc kvm's cma region management requires arbitrary bitmap granularity, > > since they want to reserve very large memory and manage this region > > with bitmap that one bit

Re: [PATCH v2 05/10] DMA, CMA: support arbitrary bitmap granularity

2014-06-12 Thread Zhang Yanfei
On 06/12/2014 03:08 PM, Minchan Kim wrote: > On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote: >> ppc kvm's cma region management requires arbitrary bitmap granularity, >> since they want to reserve very large memory and manage this region >> with bitmap that one bit for several pages to

Re: [PATCH v2 05/10] DMA, CMA: support arbitrary bitmap granularity

2014-06-12 Thread Minchan Kim
On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote: > ppc kvm's cma region management requires arbitrary bitmap granularity, > since they want to reserve very large memory and manage this region > with bitmap that one bit for several pages to reduce management overheads. > So support arbit

Re: [PATCH v2 05/10] DMA, CMA: support arbitrary bitmap granularity

2014-06-11 Thread Minchan Kim
On Thu, Jun 12, 2014 at 03:43:55PM +0900, Joonsoo Kim wrote: > On Thu, Jun 12, 2014 at 03:06:10PM +0900, Minchan Kim wrote: > > On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote: > > > ppc kvm's cma region management requires arbitrary bitmap granularity, > > > since they want to reserve

Re: [PATCH v2 05/10] DMA, CMA: support arbitrary bitmap granularity

2014-06-11 Thread Joonsoo Kim
On Thu, Jun 12, 2014 at 03:06:10PM +0900, Minchan Kim wrote: > On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote: > > ppc kvm's cma region management requires arbitrary bitmap granularity, > > since they want to reserve very large memory and manage this region > > with bitmap that one bit

Re: [PATCH v2 05/10] DMA, CMA: support arbitrary bitmap granularity

2014-06-11 Thread Minchan Kim
On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote: > ppc kvm's cma region management requires arbitrary bitmap granularity, > since they want to reserve very large memory and manage this region > with bitmap that one bit for several pages to reduce management overheads. > So support arbit