From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.h | 69 ++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.h (limited to 'kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.h') diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.h new file mode 100644 index 000000000..35d25889b --- /dev/null +++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.h @@ -0,0 +1,69 @@ +/* exynos_drm_iommu.h + * + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * Authoer: Inki Dae + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef _EXYNOS_DRM_IOMMU_H_ +#define _EXYNOS_DRM_IOMMU_H_ + +#define EXYNOS_DEV_ADDR_START 0x20000000 +#define EXYNOS_DEV_ADDR_SIZE 0x40000000 + +#ifdef CONFIG_DRM_EXYNOS_IOMMU + +int drm_create_iommu_mapping(struct drm_device *drm_dev); + +void drm_release_iommu_mapping(struct drm_device *drm_dev); + +int drm_iommu_attach_device(struct drm_device *drm_dev, + struct device *subdrv_dev); + +void drm_iommu_detach_device(struct drm_device *dev_dev, + struct device *subdrv_dev); + +static inline bool is_drm_iommu_supported(struct drm_device *drm_dev) +{ +#ifdef CONFIG_ARM_DMA_USE_IOMMU + struct device *dev = drm_dev->dev; + + return dev->archdata.mapping ? true : false; +#else + return false; +#endif +} + +#else + +static inline int drm_create_iommu_mapping(struct drm_device *drm_dev) +{ + return 0; +} + +static inline void drm_release_iommu_mapping(struct drm_device *drm_dev) +{ +} + +static inline int drm_iommu_attach_device(struct drm_device *drm_dev, + struct device *subdrv_dev) +{ + return 0; +} + +static inline void drm_iommu_detach_device(struct drm_device *drm_dev, + struct device *subdrv_dev) +{ +} + +static inline bool is_drm_iommu_supported(struct drm_device *drm_dev) +{ + return false; +} + +#endif +#endif -- cgit 1.2.3-korg