Linux-ARM-Kernel Archive on lore.kernel.org
 help / color / Atom feed
From: Souptick Joarder <jrdr.linux@gmail.com>
To: Heiko Stuebner <heiko@sntech.de>
Cc: Michal Hocko <mhocko@suse.com>,
	Peter Zijlstra <peterz@infradead.org>,
	dri-devel@lists.freedesktop.org, hjc@rock-chips.com,
	Linux-MM <linux-mm@kvack.org>,
	linux1394-devel@lists.sourceforge.net,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	oleksandr_andrushchenko@epam.com, joro@8bytes.org,
	Russell King - ARM Linux <linux@armlinux.org.uk>,
	Matthew Wilcox <willy@infradead.org>,
	airlied@linux.ie, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-media@vger.kernel.org,
	pawel@osciak.com, Rik van Riel <riel@surriel.com>,
	iommu@lists.linux-foundation.org, rppt@linux.vnet.ibm.com,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	mchehab@kernel.org, vbabka@suse.cz,
	Juergen Gross <jgross@suse.com>,
	linux-kernel@vger.kernel.org, xen-devel@lists.xen.org,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	robin.murphy@arm.com,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: Re: [PATCHv2 1/9] mm: Introduce new vm_insert_range and vm_insert_range_buggy API
Date: Fri, 1 Feb 2019 18:08:04 +0530
Message-ID: <CAFqt6zbMHG3htSsOwV3SaEEp1rMbFCoDD_3EacDk1hw_a1HJeQ@mail.gmail.com> (raw)
In-Reply-To: <1572595.mVW1PIlZyR@phil>

On Thu, Jan 31, 2019 at 6:04 PM Heiko Stuebner <heiko@sntech.de> wrote:
>
> Am Donnerstag, 31. Januar 2019, 13:31:52 CET schrieb Souptick Joarder:
> > On Thu, Jan 31, 2019 at 5:37 PM Heiko Stuebner <heiko@sntech.de> wrote:
> > >
> > > Am Donnerstag, 31. Januar 2019, 04:08:12 CET schrieb Souptick Joarder:
> > > > Previouly drivers have their own way of mapping range of
> > > > kernel pages/memory into user vma and this was done by
> > > > invoking vm_insert_page() within a loop.
> > > >
> > > > As this pattern is common across different drivers, it can
> > > > be generalized by creating new functions and use it across
> > > > the drivers.
> > > >
> > > > vm_insert_range() is the API which could be used to mapped
> > > > kernel memory/pages in drivers which has considered vm_pgoff
> > > >
> > > > vm_insert_range_buggy() is the API which could be used to map
> > > > range of kernel memory/pages in drivers which has not considered
> > > > vm_pgoff. vm_pgoff is passed default as 0 for those drivers.
> > > >
> > > > We _could_ then at a later "fix" these drivers which are using
> > > > vm_insert_range_buggy() to behave according to the normal vm_pgoff
> > > > offsetting simply by removing the _buggy suffix on the function
> > > > name and if that causes regressions, it gives us an easy way to revert.
> > > >
> > > > Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
> > > > Suggested-by: Russell King <linux@armlinux.org.uk>
> > > > Suggested-by: Matthew Wilcox <willy@infradead.org>
> > >
> > > hmm, I'm missing a changelog here between v1 and v2.
> > > Nevertheless I managed to test v1 on Rockchip hardware
> > > and display is still working, including talking to Lima via prime.
> > >
> > > So if there aren't any big changes for v2, on Rockchip
> > > Tested-by: Heiko Stuebner <heiko@sntech.de>
> >
> > Change log is available in [0/9].
> > Patch [1/9] & [4/9] have no changes between v1 -> v2.
>
> I never seem to get your cover-letters, so didn't see that, sorry.

I added you in sender list for all cover-letters but it didn't reach
your inbox :-)
Thanks for reviewing and validating the patch.

>
> But great that there weren't changes then :-)
>
> Heiko
>
>

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

      reply index

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-31  3:08 Souptick Joarder
2019-01-31  8:38 ` Mike Rapoport
2019-01-31 10:13   ` Souptick Joarder
2019-01-31 11:06     ` Mike Rapoport
2019-02-07 15:49   ` Souptick Joarder
2019-02-07 15:57     ` Mike Rapoport
2019-02-07 16:07       ` Souptick Joarder
2019-02-07 16:04         ` Mike Rapoport
2019-02-07 16:47     ` Matthew Wilcox
2019-02-08  5:22       ` Souptick Joarder
2019-02-11 17:06         ` Souptick Joarder
2019-01-31 12:06 ` Heiko Stuebner
2019-01-31 12:31   ` Souptick Joarder
2019-01-31 12:34     ` Heiko Stuebner
2019-02-01 12:38       ` Souptick Joarder [this message]

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAFqt6zbMHG3htSsOwV3SaEEp1rMbFCoDD_3EacDk1hw_a1HJeQ@mail.gmail.com \
    --to=jrdr.linux@gmail.com \
    --cc=airlied@linux.ie \
    --cc=akpm@linux-foundation.org \
    --cc=boris.ostrovsky@oracle.com \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=heiko@sntech.de \
    --cc=hjc@rock-chips.com \
    --cc=iommu@lists.linux-foundation.org \
    --cc=jgross@suse.com \
    --cc=joro@8bytes.org \
    --cc=kirill.shutemov@linux.intel.com \
    --cc=kyungmin.park@samsung.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-media@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=linux-rockchip@lists.infradead.org \
    --cc=linux1394-devel@lists.sourceforge.net \
    --cc=linux@armlinux.org.uk \
    --cc=mchehab@kernel.org \
    --cc=mhocko@suse.com \
    --cc=oleksandr_andrushchenko@epam.com \
    --cc=pawel@osciak.com \
    --cc=peterz@infradead.org \
    --cc=riel@surriel.com \
    --cc=robin.murphy@arm.com \
    --cc=rppt@linux.vnet.ibm.com \
    --cc=sfr@canb.auug.org.au \
    --cc=vbabka@suse.cz \
    --cc=willy@infradead.org \
    --cc=xen-devel@lists.xen.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-ARM-Kernel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/0 linux-arm-kernel/git/0.git
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/1 linux-arm-kernel/git/1.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-arm-kernel linux-arm-kernel/ https://lore.kernel.org/linux-arm-kernel \
		linux-arm-kernel@lists.infradead.org infradead-linux-arm-kernel@archiver.kernel.org
	public-inbox-index linux-arm-kernel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.infradead.lists.linux-arm-kernel


AGPL code for this site: git clone https://public-inbox.org/ public-inbox