From: Inki Dae Date: Sun, 4 Nov 2012 04:53:24 +0000 (-0700) Subject: drm/exynos: add iommu support for g2d X-Git-Tag: v3.8-rc1~82^2~13^2~17 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d87342c10de68d75ecd976556299c68a300c3834;p=pandora-kernel.git drm/exynos: add iommu support for g2d Chagelog v2: removed unnecessary structure, struct g2d_gem_node. Chagelog v1: This patch adds iommu support for g2d driver. For this, it adds subdrv_probe/remove callback to enable or disable g2d iommu. And with this patch, in case of using g2d iommu, we can get or put device address to a gem handle from user through exynos_drm_gem_get/put_dma_addr(). Actually, these functions take a reference to a gem handle so that the gem object used by g2d dma is released properly. And runqueue_node has a pointer to drm_file object of current process to manage gem handles to owner. This patch is based on the below patch set, "drm/exynos: add iommu support for -next". http://www.spinics.net/lists/dri-devel/msg29041.html Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- Reading git-diff-tree failed