Re: [HMM 02/15] mm/hmm: heterogeneous memory management (HMM for short) v4

From	Balbir Singh <bsingharora@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [HMM 02/15] mm/hmm: heterogeneous memory management (HMM for short) v4
Date	2017-05-31 04:20 +0200
Message-ID	<tN1oS-732-9@gated-at.bofh.it> (permalink)
References	<tKIgF-5fw-3@gated-at.bofh.it> <tKIgH-5fw-37@gated-at.bofh.it>
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On Wed, 24 May 2017 13:20:11 -0400
Jérôme Glisse <jglisse@redhat.com> wrote:

> HMM provides 3 separate types of functionality:
>     - Mirroring: synchronize CPU page table and device page table
>     - Device memory: allocating struct page for device memory
>     - Migration: migrating regular memory to device memory
> 
> This patch introduces some common helpers and definitions to all of
> those 3 functionality.
> 
> Changed since v3:
>   - Unconditionaly build hmm.c for static keys
> Changed since v2:
>   - s/device unaddressable/device private
> Changed since v1:
>   - Kconfig logic (depend on x86-64 and use ARCH_HAS pattern)
> 
> Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
> Signed-off-by: Evgeny Baskakov <ebaskakov@nvidia.com>
> Signed-off-by: John Hubbard <jhubbard@nvidia.com>
> Signed-off-by: Mark Hairgrove <mhairgrove@nvidia.com>
> Signed-off-by: Sherry Cheung <SCheung@nvidia.com>
> Signed-off-by: Subhash Gutti <sgutti@nvidia.com>
> ---

It would be nice to explain a bit of how hmm_pfn_t bits work with pfn
and find out what we need from an arch to support HMM.


Balbir Singh.

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Re: [HMM 02/15] mm/hmm: heterogeneous memory management (HMM for  short) v4 Balbir Singh <bsingharora@gmail.com> - 2017-05-31 04:20 +0200
  Re: [HMM 02/15] mm/hmm: heterogeneous memory management (HMM for  short) v4 Jerome Glisse <jglisse@redhat.com> - 2017-06-02 00:40 +0200

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