linux-kernel - [PATCH v2 v3.18-rc4 0/4] drm: prime: Allow exported dma-bufs to be mapped

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1415792295-2466-1-git-send-email-daniel.thompson@linaro.org>
Date:	Wed, 12 Nov 2014 11:38:11 +0000
From:	Daniel Thompson <daniel.thompson@...aro.org>
To:	David Airlie <airlied@...ux.ie>
Cc:	Daniel Thompson <daniel.thompson@...aro.org>,
	dri-devel@...ts.freedesktop.org, Rob Clark <robdclark@...il.com>,
	Benjamin Gaignard <benjamin.gaignard@...aro.org>,
	linux-kernel@...r.kernel.org, patches@...aro.org,
	linaro-kernel@...ts.linaro.org,
	John Stultz <john.stultz@...aro.org>,
	Sumit Semwal <sumit.semwal@...aro.org>
Subject: [PATCH v2 v3.18-rc4 0/4] drm: prime: Allow exported dma-bufs to be mapped

This patch set started out as a single patch with a trivial bit of
boilerplate to add dmabuf mmap support to the msm driver. Each of the
change remains fairly trivial but I've split it out by topic.

Patches 1, 2 and 3 in this series should be good to go but please don't
take patch 4 (which has a small effect on userspace) without an explicit
ack from Benjamin Gaignard.

I've tested this both with a rather hacked about Android userspace
and with a fairly small test case run from debian. Both bits of code
currently use dumb buffers.

Thanks to Benjamin for his help in finding this bit of code.

v2:

* Modified DRM_PRIME_HANDLE_TO_FD to honour the O_RDRW from the user
  and removed code to workaround this from the sti driver (Rob Clark).

* Added a patch to (rather spartanly) document gem_prime_mmap. Only
  tacked into this series 'cos I spotted it was missing when I was
  checking whether I needed to describe DRM_RDRWR anywhere.

Daniel Thompson (4):
  drm: prime: Honour O_RDWR during prime-handle-to-fd
  drm: prime: Document gem_prime_mmap
  drm: msm: Allow exported dma-bufs to be mapped
  drm: sti: Honour O_RDWR during prime-handle-to-fd

 drivers/gpu/drm/drm_prime.c         | 13 ++++++-------
 drivers/gpu/drm/msm/msm_drv.c       |  1 +
 drivers/gpu/drm/msm/msm_drv.h       |  3 +++
 drivers/gpu/drm/msm/msm_gem_prime.c | 13 +++++++++++++
 drivers/gpu/drm/sti/sti_drm_drv.c   | 11 +----------
 include/uapi/drm/drm.h              |  1 +
 6 files changed, 25 insertions(+), 17 deletions(-)

--
1.9.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/