From: Gerd Hoffmann <kraxel@redhat.com>
To: "Koenig, Christian" <Christian.Koenig@amd.com>
Cc: "dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
"Huang, Ray" <Ray.Huang@amd.com>, David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel@ffwll.ch>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 07/11] drm/ttm: drop VM_DONTDUMP
Date: Tue, 17 Sep 2019 13:40:41 +0200 [thread overview]
Message-ID: <20190917114041.6oaukfnsai5rmf54@sirius.home.kraxel.org> (raw)
In-Reply-To: <c29222f7-2737-2416-62c9-eafd4d608ded@amd.com>
On Tue, Sep 17, 2019 at 11:22:35AM +0000, Koenig, Christian wrote:
> Am 17.09.19 um 11:24 schrieb Gerd Hoffmann:
> > Not obvious why this is needed. According to Deniel Vetter this is most
> > likely a historic artefact dating back to the days where drm drivers
> > exposed hardware registers as mmap'able gem objects, to avoid dumping
> > touching those registers.
>
> Clearly a NAK.
>
> We still have that and really don't want to try dumping any CPU
> inaccessible VRAM content even if it is mapped into the address space
> somewhere.
Thanks for the clarification, I'll drop the patch.
cheers,
Gerd
next prev parent reply other threads:[~2019-09-17 11:40 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190917092404.9982-1-kraxel@redhat.com>
2019-09-17 9:23 ` [PATCH v2 01/11] drm: add mmap() to drm_gem_object_funcs Gerd Hoffmann
2019-09-17 9:23 ` [PATCH v2 02/11] drm/shmem: switch shmem helper to &drm_gem_object_funcs.mmap Gerd Hoffmann
2019-09-23 13:29 ` Steven Price
2019-09-17 9:23 ` [PATCH v2 03/11] drm/shmem: drop VM_DONTDUMP Gerd Hoffmann
2019-09-23 13:32 ` Steven Price
2019-09-17 9:23 ` [PATCH v2 04/11] drm/shmem: drop VM_IO Gerd Hoffmann
2019-09-23 13:32 ` Steven Price
2019-09-17 9:23 ` [PATCH v2 05/11] drm/shmem: drop DEFINE_DRM_GEM_SHMEM_FOPS Gerd Hoffmann
2019-09-17 9:23 ` [PATCH v2 06/11] drm/ttm: factor out ttm_bo_mmap_vma_setup Gerd Hoffmann
2019-09-17 9:24 ` [PATCH v2 07/11] drm/ttm: drop VM_DONTDUMP Gerd Hoffmann
2019-09-17 11:22 ` Koenig, Christian
2019-09-17 11:40 ` Gerd Hoffmann [this message]
2019-09-17 9:24 ` [PATCH v2 08/11] drm/ttm: add drm_gem_ttm_mmap() Gerd Hoffmann
2019-09-17 9:24 ` [PATCH v2 09/11] drm/vram: switch vram helper to &drm_gem_object_funcs.mmap() Gerd Hoffmann
2019-09-17 9:24 ` [PATCH v2 10/11] drm/vram: drop verify_access Gerd Hoffmann
2019-09-17 9:24 ` [PATCH v2 11/11] drm/vram: drop DRM_VRAM_MM_FILE_OPERATIONS Gerd Hoffmann
Reply instructions:
You may reply publicly 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=20190917114041.6oaukfnsai5rmf54@sirius.home.kraxel.org \
--to=kraxel@redhat.com \
--cc=Christian.Koenig@amd.com \
--cc=Ray.Huang@amd.com \
--cc=airlied@linux.ie \
--cc=daniel.vetter@ffwll.ch \
--cc=daniel@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=linux-kernel@vger.kernel.org \
--cc=tzimmermann@suse.de \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).