drm/exynos/iommu: move IOMMU specific stuff into exynos_drm_iommu.c

Since __exynos_iommu* functions are used only in exynos_drm_iommu.c we can
move them there.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos_drm_iommu.c

@@ -18,6 +18,78 @@
 #include "exynos_drm_drv.h"
 #include "exynos_drm_iommu.h"
 
+#define EXYNOS_DEV_ADDR_START	0x20000000
+#define EXYNOS_DEV_ADDR_SIZE	0x40000000
+
+#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
+
 static inline int configure_dma_max_seg_size(struct device *dev)
 {
 	if (!dev->dma_parms)

drivers/gpu/drm/exynos/exynos_drm_iommu.h

@@ -12,80 +12,8 @@
 #ifndef _EXYNOS_DRM_IOMMU_H_
 #define _EXYNOS_DRM_IOMMU_H_
 
-#define EXYNOS_DEV_ADDR_START	0x20000000
-#define EXYNOS_DEV_ADDR_SIZE	0x40000000
-
 #ifdef CONFIG_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);