Re: [HMM-v25 19/19] mm/hmm: add new helper to hotplug CDM memory region v3

2017-11-16 Thread chetan L
On Fri, Sep 8, 2017 at 1:43 PM, Dan Williams wrote: > On Thu, Sep 7, 2017 at 6:59 PM, Bob Liu wrote: >> On 2017/9/8 1:27, Jerome Glisse wrote: > [..] >>> No this are 2 orthogonal thing, they do not conflict with each others quite >>> the contrary.

Re: [HMM-v25 19/19] mm/hmm: add new helper to hotplug CDM memory region v3

2017-11-16 Thread chetan L
On Fri, Sep 8, 2017 at 1:43 PM, Dan Williams wrote: > On Thu, Sep 7, 2017 at 6:59 PM, Bob Liu wrote: >> On 2017/9/8 1:27, Jerome Glisse wrote: > [..] >>> No this are 2 orthogonal thing, they do not conflict with each others quite >>> the contrary. HMM (the CDM part is no different) is a set of

Re: [PATCH 0/6] Cache coherent device memory (CDM) with HMM v5

2017-11-16 Thread chetan L
On Thu, Nov 16, 2017 at 1:29 PM, Jerome Glisse wrote: > > For the NUMA discussion this is related to CPU less node ie not wanting > to add any more CPU less node (node with only memory) and they are other > aspect too. For instance you do not necessarily have good

Re: [PATCH 0/6] Cache coherent device memory (CDM) with HMM v5

2017-11-16 Thread chetan L
On Thu, Nov 16, 2017 at 1:29 PM, Jerome Glisse wrote: > > For the NUMA discussion this is related to CPU less node ie not wanting > to add any more CPU less node (node with only memory) and they are other > aspect too. For instance you do not necessarily have good informations > from the device

Re: [PATCH 0/6] Cache coherent device memory (CDM) with HMM v5

2017-11-15 Thread chetan L
On Wed, Nov 15, 2017 at 7:23 PM, chetan L <loke.che...@gmail.com> wrote: > CC'ing : linux-accelerat...@vger.kernel.org > Sorry, CC'ing the correct list this time: linux-accelerat...@lists.ozlabs.org > On Wed, Nov 15, 2017 at 6:44 PM, Jerome Glisse <jgli...@redhat.com> wro

Re: [PATCH 0/6] Cache coherent device memory (CDM) with HMM v5

2017-11-15 Thread chetan L
On Wed, Nov 15, 2017 at 7:23 PM, chetan L wrote: > CC'ing : linux-accelerat...@vger.kernel.org > Sorry, CC'ing the correct list this time: linux-accelerat...@lists.ozlabs.org > On Wed, Nov 15, 2017 at 6:44 PM, Jerome Glisse wrote: >> On Wed, Nov 15, 2017 at 06:10:08PM -080

Re: [PATCH 0/6] Cache coherent device memory (CDM) with HMM v5

2017-11-15 Thread chetan L
CC'ing : linux-accelerat...@vger.kernel.org On Wed, Nov 15, 2017 at 6:44 PM, Jerome Glisse wrote: > On Wed, Nov 15, 2017 at 06:10:08PM -0800, chet l wrote: >> >> You may think it as a CCIX device or CAPI device. >> >> The requirement is eliminate any extra copy. >> >> A

Re: [PATCH 0/6] Cache coherent device memory (CDM) with HMM v5

2017-11-15 Thread chetan L
CC'ing : linux-accelerat...@vger.kernel.org On Wed, Nov 15, 2017 at 6:44 PM, Jerome Glisse wrote: > On Wed, Nov 15, 2017 at 06:10:08PM -0800, chet l wrote: >> >> You may think it as a CCIX device or CAPI device. >> >> The requirement is eliminate any extra copy. >> >> A typical