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

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

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

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 helpers, see >> it as a toolbox, for

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

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 helpers, see >> it as a toolbox, for device driver. >> >>

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

On Fri, Sep 08, 2017 at 01:43:44PM -0600, Ross Zwisler wrote: > On Tue, Sep 05, 2017 at 03:20:50PM -0400, Jerome Glisse wrote: > <> > > Does HMAT support device hotplug ? I am unfamiliar with the whole inner > > working > > of ACPI versus PCIE. Anyway i don't see any issue with device memory also

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

On Fri, Sep 08, 2017 at 01:43:44PM -0600, Ross Zwisler wrote: > On Tue, Sep 05, 2017 at 03:20:50PM -0400, Jerome Glisse wrote: > <> > > Does HMAT support device hotplug ? I am unfamiliar with the whole inner > > working > > of ACPI versus PCIE. Anyway i don't see any issue with device memory also

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

On Tue, Sep 05, 2017 at 03:20:50PM -0400, Jerome Glisse wrote: <> > Does HMAT support device hotplug ? I am unfamiliar with the whole inner > working > of ACPI versus PCIE. Anyway i don't see any issue with device memory also > showing > through HMAT but like i said device driver for the device

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

On Tue, Sep 05, 2017 at 03:20:50PM -0400, Jerome Glisse wrote: <> > Does HMAT support device hotplug ? I am unfamiliar with the whole inner > working > of ACPI versus PCIE. Anyway i don't see any issue with device memory also > showing > through HMAT but like i said device driver for the device

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

On 2017/9/8 1:27, Jerome Glisse wrote: >> On 2017/9/6 10:12, Jerome Glisse wrote: >>> On Wed, Sep 06, 2017 at 09:25:36AM +0800, Bob Liu wrote: On 2017/9/6 2:54, Ross Zwisler wrote: > On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: >> On Tue, Sep 05, 2017 at 09:13:24AM

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

On 2017/9/8 1:27, Jerome Glisse wrote: >> On 2017/9/6 10:12, Jerome Glisse wrote: >>> On Wed, Sep 06, 2017 at 09:25:36AM +0800, Bob Liu wrote: On 2017/9/6 2:54, Ross Zwisler wrote: > On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: >> On Tue, Sep 05, 2017 at 09:13:24AM

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

> On 2017/9/6 10:12, Jerome Glisse wrote: > > On Wed, Sep 06, 2017 at 09:25:36AM +0800, Bob Liu wrote: > >> On 2017/9/6 2:54, Ross Zwisler wrote: > >>> On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > > On 2017/9/4

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

> On 2017/9/6 10:12, Jerome Glisse wrote: > > On Wed, Sep 06, 2017 at 09:25:36AM +0800, Bob Liu wrote: > >> On 2017/9/6 2:54, Ross Zwisler wrote: > >>> On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > > On 2017/9/4

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

> On 2017/9/6 10:12, Jerome Glisse wrote: > > On Wed, Sep 06, 2017 at 09:25:36AM +0800, Bob Liu wrote: > >> On 2017/9/6 2:54, Ross Zwisler wrote: > >>> On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > > On 2017/9/4

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

> On 2017/9/6 10:12, Jerome Glisse wrote: > > On Wed, Sep 06, 2017 at 09:25:36AM +0800, Bob Liu wrote: > >> On 2017/9/6 2:54, Ross Zwisler wrote: > >>> On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > > On 2017/9/4

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

On 2017/9/6 10:12, Jerome Glisse wrote: > On Wed, Sep 06, 2017 at 09:25:36AM +0800, Bob Liu wrote: >> On 2017/9/6 2:54, Ross Zwisler wrote: >>> On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > On 2017/9/4 23:51,

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

On 2017/9/6 10:12, Jerome Glisse wrote: > On Wed, Sep 06, 2017 at 09:25:36AM +0800, Bob Liu wrote: >> On 2017/9/6 2:54, Ross Zwisler wrote: >>> On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > On 2017/9/4 23:51,

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

On Wed, Sep 06, 2017 at 09:25:36AM +0800, Bob Liu wrote: > On 2017/9/6 2:54, Ross Zwisler wrote: > > On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: > >> On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > >>> On 2017/9/4 23:51, Jerome Glisse wrote: > On Mon, Sep 04,

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

On Wed, Sep 06, 2017 at 09:25:36AM +0800, Bob Liu wrote: > On 2017/9/6 2:54, Ross Zwisler wrote: > > On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: > >> On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > >>> On 2017/9/4 23:51, Jerome Glisse wrote: > On Mon, Sep 04,

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

On 2017/9/6 2:54, Ross Zwisler wrote: > On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: >> On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: >>> On 2017/9/4 23:51, Jerome Glisse wrote: On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: > On 2017/8/17 8:05,

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

On 2017/9/6 2:54, Ross Zwisler wrote: > On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: >> On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: >>> On 2017/9/4 23:51, Jerome Glisse wrote: On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: > On 2017/8/17 8:05,

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

On Tue, Sep 05, 2017 at 01:00:13PM -0600, Ross Zwisler wrote: > On Tue, Sep 05, 2017 at 09:50:17AM -0400, Jerome Glisse wrote: > > On Tue, Sep 05, 2017 at 11:50:57AM +0800, Bob Liu wrote: > > > On 2017/9/5 10:38, Jerome Glisse wrote: > > > > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote:

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

On Tue, Sep 05, 2017 at 01:00:13PM -0600, Ross Zwisler wrote: > On Tue, Sep 05, 2017 at 09:50:17AM -0400, Jerome Glisse wrote: > > On Tue, Sep 05, 2017 at 11:50:57AM +0800, Bob Liu wrote: > > > On 2017/9/5 10:38, Jerome Glisse wrote: > > > > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote:

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

On Tue, Sep 05, 2017 at 09:50:17AM -0400, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 11:50:57AM +0800, Bob Liu wrote: > > On 2017/9/5 10:38, Jerome Glisse wrote: > > > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > > >> On 2017/9/4 23:51, Jerome Glisse wrote: > > >>> On Mon, Sep

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

On Tue, Sep 05, 2017 at 09:50:17AM -0400, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 11:50:57AM +0800, Bob Liu wrote: > > On 2017/9/5 10:38, Jerome Glisse wrote: > > > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > > >> On 2017/9/4 23:51, Jerome Glisse wrote: > > >>> On Mon, Sep

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

On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > > On 2017/9/4 23:51, Jerome Glisse wrote: > > > On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: > > >> On 2017/8/17 8:05, Jérôme Glisse wrote: > > >>> Unlike

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

On Mon, Sep 04, 2017 at 10:38:27PM -0400, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > > On 2017/9/4 23:51, Jerome Glisse wrote: > > > On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: > > >> On 2017/8/17 8:05, Jérôme Glisse wrote: > > >>> Unlike

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

On Tue, Sep 5, 2017 at 6:50 AM, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 11:50:57AM +0800, Bob Liu wrote: >> On 2017/9/5 10:38, Jerome Glisse wrote: >> > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: >> >> On 2017/9/4 23:51, Jerome Glisse wrote: >> >>> On Mon,

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

On Tue, Sep 5, 2017 at 6:50 AM, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 11:50:57AM +0800, Bob Liu wrote: >> On 2017/9/5 10:38, Jerome Glisse wrote: >> > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: >> >> On 2017/9/4 23:51, Jerome Glisse wrote: >> >>> On Mon, Sep 04, 2017 at

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

On Tue, Sep 05, 2017 at 11:50:57AM +0800, Bob Liu wrote: > On 2017/9/5 10:38, Jerome Glisse wrote: > > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > >> On 2017/9/4 23:51, Jerome Glisse wrote: > >>> On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: > On 2017/8/17 8:05,

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

On Tue, Sep 05, 2017 at 11:50:57AM +0800, Bob Liu wrote: > On 2017/9/5 10:38, Jerome Glisse wrote: > > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > >> On 2017/9/4 23:51, Jerome Glisse wrote: > >>> On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: > On 2017/8/17 8:05,

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

On 2017/9/5 10:38, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: >> On 2017/9/4 23:51, Jerome Glisse wrote: >>> On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: On 2017/8/17 8:05, Jérôme Glisse wrote: > Unlike unaddressable memory, coherent device

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

On 2017/9/5 10:38, Jerome Glisse wrote: > On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: >> On 2017/9/4 23:51, Jerome Glisse wrote: >>> On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: On 2017/8/17 8:05, Jérôme Glisse wrote: > Unlike unaddressable memory, coherent device

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

On Tue, Sep 5, 2017 at 1:51 AM, Jerome Glisse wrote: > On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: >> On 2017/8/17 8:05, Jérôme Glisse wrote: >> > Unlike unaddressable memory, coherent device memory has a real >> > resource associated with it on the system (as CPU

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

On Tue, Sep 5, 2017 at 1:51 AM, Jerome Glisse wrote: > On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: >> On 2017/8/17 8:05, Jérôme Glisse wrote: >> > Unlike unaddressable memory, coherent device memory has a real >> > resource associated with it on the system (as CPU can address >> >

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

On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > On 2017/9/4 23:51, Jerome Glisse wrote: > > On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: > >> On 2017/8/17 8:05, Jérôme Glisse wrote: > >>> Unlike unaddressable memory, coherent device memory has a real > >>> resource

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

On Tue, Sep 05, 2017 at 09:13:24AM +0800, Bob Liu wrote: > On 2017/9/4 23:51, Jerome Glisse wrote: > > On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: > >> On 2017/8/17 8:05, Jérôme Glisse wrote: > >>> Unlike unaddressable memory, coherent device memory has a real > >>> resource

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

On 2017/9/4 23:51, Jerome Glisse wrote: > On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: >> On 2017/8/17 8:05, Jérôme Glisse wrote: >>> Unlike unaddressable memory, coherent device memory has a real >>> resource associated with it on the system (as CPU can address >>> it). Add a new

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

On 2017/9/4 23:51, Jerome Glisse wrote: > On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: >> On 2017/8/17 8:05, Jérôme Glisse wrote: >>> Unlike unaddressable memory, coherent device memory has a real >>> resource associated with it on the system (as CPU can address >>> it). Add a new

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

On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: > On 2017/8/17 8:05, Jérôme Glisse wrote: > > Unlike unaddressable memory, coherent device memory has a real > > resource associated with it on the system (as CPU can address > > it). Add a new helper to hotplug such memory within the HMM >

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

On Mon, Sep 04, 2017 at 11:09:14AM +0800, Bob Liu wrote: > On 2017/8/17 8:05, Jérôme Glisse wrote: > > Unlike unaddressable memory, coherent device memory has a real > > resource associated with it on the system (as CPU can address > > it). Add a new helper to hotplug such memory within the HMM >

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

On 2017/8/17 8:05, Jérôme Glisse wrote: > Unlike unaddressable memory, coherent device memory has a real > resource associated with it on the system (as CPU can address > it). Add a new helper to hotplug such memory within the HMM > framework. > Got an new question, coherent device( e.g CCIX)

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

On 2017/8/17 8:05, Jérôme Glisse wrote: > Unlike unaddressable memory, coherent device memory has a real > resource associated with it on the system (as CPU can address > it). Add a new helper to hotplug such memory within the HMM > framework. > Got an new question, coherent device( e.g CCIX)

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

Unlike unaddressable memory, coherent device memory has a real resource associated with it on the system (as CPU can address it). Add a new helper to hotplug such memory within the HMM framework. Changed since v2: - s/host/public Changed since v1: - s/public/host Signed-off-by: Jérôme Glisse

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

Unlike unaddressable memory, coherent device memory has a real resource associated with it on the system (as CPU can address it). Add a new helper to hotplug such memory within the HMM framework. Changed since v2: - s/host/public Changed since v1: - s/public/host Signed-off-by: Jérôme Glisse