From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Gaignard Subject: [PATCH v6 0/2] staging: ion: get one device per heap Date: Mon, 23 Oct 2017 17:55:35 +0200 Message-ID: <1508774137-13835-1-git-send-email-benjamin.gaignard@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" To: labbott@redhat.com, sumit.semwal@linaro.org, gregkh@linuxfoundation.org, arve@android.com, riandrews@android.com, broonie@kernel.org, dan.carpenter@oracle.com Cc: devel@driverdev.osuosl.org, linux-api@vger.kernel.org, Benjamin Gaignard , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org List-Id: linux-api@vger.kernel.org version 6: - add platform_bus and platform_bus_type when register Ion devices to make them appear in /sys/devices/platform. - re-order include files in aphabetic order. version 5: - create a configuration flag to keep legacy Ion misc device version 4: - add a configuration flag to switch between legacy Ion misc device and one device per heap version. This change has been suggested after Laura talks at XDC 2017. version 3: - change ion_device_add_heap prototype to return a possible error. version 2: - simplify ioctl check like propose by Dan - make sure that we don't register more than ION_DEV_MAX heaps. Until now all ion heaps are addressing using the same device "/dev/ion". This way of working doesn't allow to give access rights (for example with SElinux rules) per heap. This series propose to have one device "/dev/ionX" per heap. Query heaps informations will be possible on each device node but allocation request will only be possible if heap_mask_id match with device minor number. Using legacy Ion misc device is still by setting ION_LEGACY_DEVICE_API configuration flag. Benjamin Gaignard (2): staging: ion: simplify ioctl args checking function staging: ion: create one device entry per heap drivers/staging/android/TODO | 1 - drivers/staging/android/ion/Kconfig | 7 +++++ drivers/staging/android/ion/ion-ioctl.c | 29 +++++++++++++----- drivers/staging/android/ion/ion.c | 53 ++++++++++++++++++++++++++------- drivers/staging/android/ion/ion.h | 15 ++++++++-- 5 files changed, 84 insertions(+), 21 deletions(-) -- 2.7.4