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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/drivers/video/rockchip/mpp/mpp_iommu.h
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@@ -13,6 +13,7 @@
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 #include <linux/iommu.h>
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 #include <linux/dma-mapping.h>
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+#include <linux/interrupt.h>
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 struct mpp_dma_buffer {
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 	/* link to dma session buffer list */
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@@ -64,6 +65,8 @@
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 	u32 is_paged;
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 };
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+struct mpp_dev;
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+
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 struct mpp_iommu_info {
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 	struct rw_semaphore rw_sem;
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@@ -73,6 +76,13 @@
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 	struct iommu_group *group;
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 	struct mpp_rk_iommu *iommu;
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 	iommu_fault_handler_t hdl;
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+
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+	spinlock_t dev_lock;
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+	struct mpp_dev *dev_active;
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+
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+	u32 av1d_iommu;
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+	int irq;
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+	int got_irq;
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 };
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 struct mpp_dma_session *
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@@ -94,6 +104,9 @@
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 			 struct mpp_dma_buffer *buffer);
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 int mpp_dma_map_kernel(struct mpp_dma_session *dma,
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 		       struct mpp_dma_buffer *buffer);
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+struct mpp_dma_buffer *mpp_dma_find_buffer_fd(struct mpp_dma_session *dma, int fd);
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+void mpp_dma_buf_sync(struct mpp_dma_buffer *buffer, u32 offset, u32 length,
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+		      enum dma_data_direction dir, bool for_cpu);
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 struct mpp_iommu_info *
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 mpp_iommu_probe(struct device *dev);
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@@ -104,6 +117,11 @@
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 int mpp_iommu_refresh(struct mpp_iommu_info *info, struct device *dev);
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 int mpp_iommu_flush_tlb(struct mpp_iommu_info *info);
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+int mpp_av1_iommu_disable(struct device *dev);
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+int mpp_av1_iommu_enable(struct device *dev);
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+
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+int mpp_iommu_dev_activate(struct mpp_iommu_info *info, struct mpp_dev *dev);
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+int mpp_iommu_dev_deactivate(struct mpp_iommu_info *info, struct mpp_dev *dev);
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 static inline int mpp_iommu_down_read(struct mpp_iommu_info *info)
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 {
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@@ -137,4 +155,16 @@
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 	return 0;
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 }
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+static inline void mpp_iommu_enable_irq(struct mpp_iommu_info *info)
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+{
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+	if (info && info->got_irq)
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+		enable_irq(info->irq);
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+}
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+
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+static inline void mpp_iommu_disable_irq(struct mpp_iommu_info *info)
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+{
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+	if (info && info->got_irq)
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+		disable_irq(info->irq);
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+}
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+
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 #endif