videobuf2-dma-sg: Contiguos memory allocation [LWN.net]

From:		Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
To:		Jonathan Corbet <corbet@lwn.net>, Mauro Carvalho Chehab <mchehab@redhat.com>, Pawel Osciak <pawel@osciak.com>, Marek Szyprowski <m.szyprowski@samsung.com>, Kyungmin Park <kyungmin.park@samsung.com>, Ismael Luceno <ismael.luceno@corp.bluecherry.net>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, linux-media@vger.kernel.org, Sylwester Nawrocki <s.nawrocki@samsung.com>
Subject:		[PATCH 0/2] videobuf2-dma-sg: Contiguos memory allocation
Date:		Fri, 2 Aug 2013 13:26:54 +0200
Message-ID:		<1375442816-20223-1-git-send-email-ricardo.ribalda@gmail.com>
Cc:		Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Archive-link:		Article, Thread

Allocate memory as contiguos as possible to support dma engines with limitated amount of sg-descriptors.

Replace private structer vb2_dma_sg_desc with generic struct sg_table.

PS: This series of patches is the evolution of my previous patch for vb2-dma-sg to allocate the memory as contiguos as possible.

v3: Constains feedback from Andre Heider
Andre: Fix error handling (--pages) was wrongly fixed

v2: Contains feedback from Andre Heider and Sylwester Nawrocki

Andre: Fix error handling (--pages)
Sylwester: Squash p3 and p4 into p2

Ricardo Ribalda Delgado (2):
  videobuf2-dma-sg: Allocate pages as contiguous as possible
  videobuf2-dma-sg: Replace vb2_dma_sg_desc with sg_table

 drivers/media/platform/marvell-ccic/mcam-core.c    |   14 +-
 drivers/media/v4l2-core/videobuf2-dma-sg.c         |  149 +++++++++++---------
 drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c |   20 +--
 include/media/videobuf2-dma-sg.h                   |   10 +-
 4 files changed, 105 insertions(+), 88 deletions(-)

-- 
1.7.10.4