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author | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-01-11 18:32:10 +0300 |
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committer | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-01-11 18:32:10 +0300 |
commit | 23d19ba06b9c5614d6457f5fed349ec8f6d4dac9 (patch) | |
tree | 39f0b657e5b1b5b958780cae4ae6360f69548d50 /drivers/gpu/drm/exynos/exynos_drm_iommu.h | |
parent | 7d0250ed8e69fb6a66caecf60b8753a21224cc1a (diff) | |
parent | e3d093070eb0b5e3df668d3eb04100ea79343c65 (diff) | |
download | linux-23d19ba06b9c5614d6457f5fed349ec8f6d4dac9.tar.xz |
Merge drm/drm-next into drm-misc-next
drm-next has been forwarded to 5.0-rc1, and we need it to apply the damage
helper for dirtyfb series from Noralf Trønnes.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_iommu.h')
-rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_iommu.h | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_iommu.h b/drivers/gpu/drm/exynos/exynos_drm_iommu.h deleted file mode 100644 index 797d9ee5f15a..000000000000 --- a/drivers/gpu/drm/exynos/exynos_drm_iommu.h +++ /dev/null @@ -1,134 +0,0 @@ -/* exynos_drm_iommu.h - * - * Copyright (c) 2012 Samsung Electronics Co., Ltd. - * Authoer: Inki Dae <inki.dae@samsung.com> - * - * 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 - -#if defined(CONFIG_ARM_DMA_USE_IOMMU) -#include <asm/dma-iommu.h> - -static inline int __exynos_iommu_create_mapping(struct exynos_drm_private *priv, - unsigned long start, unsigned long size) -{ - priv->mapping = arm_iommu_create_mapping(&platform_bus_type, start, - size); - return IS_ERR(priv->mapping); -} - -static inline void -__exynos_iommu_release_mapping(struct exynos_drm_private *priv) -{ - arm_iommu_release_mapping(priv->mapping); -} - -static inline int __exynos_iommu_attach(struct exynos_drm_private *priv, - struct device *dev) -{ - if (dev->archdata.mapping) - arm_iommu_detach_device(dev); - - return arm_iommu_attach_device(dev, priv->mapping); -} - -static inline void __exynos_iommu_detach(struct exynos_drm_private *priv, - struct device *dev) -{ - arm_iommu_detach_device(dev); -} - -#elif defined(CONFIG_IOMMU_DMA) -#include <linux/dma-iommu.h> - -static inline int __exynos_iommu_create_mapping(struct exynos_drm_private *priv, - unsigned long start, unsigned long size) -{ - priv->mapping = iommu_get_domain_for_dev(priv->dma_dev); - return 0; -} - -static inline void __exynos_iommu_release_mapping(struct exynos_drm_private *priv) -{ - priv->mapping = NULL; -} - -static inline int __exynos_iommu_attach(struct exynos_drm_private *priv, - struct device *dev) -{ - struct iommu_domain *domain = priv->mapping; - - if (dev != priv->dma_dev) - return iommu_attach_device(domain, dev); - return 0; -} - -static inline void __exynos_iommu_detach(struct exynos_drm_private *priv, - struct device *dev) -{ - struct iommu_domain *domain = priv->mapping; - - if (dev != priv->dma_dev) - iommu_detach_device(domain, dev); -} -#else -#error Unsupported architecture and IOMMU/DMA-mapping glue code -#endif - -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) -{ - struct exynos_drm_private *priv = drm_dev->dev_private; - - return priv->mapping ? true : false; -} - -#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 |