diff options
Diffstat (limited to 'drivers/staging/media/tegra-vde/vde.h')
-rw-r--r-- | drivers/staging/media/tegra-vde/vde.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/staging/media/tegra-vde/vde.h b/drivers/staging/media/tegra-vde/vde.h new file mode 100644 index 000000000000..d369f1466bc7 --- /dev/null +++ b/drivers/staging/media/tegra-vde/vde.h @@ -0,0 +1,107 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * NVIDIA Tegra Video decoder driver + * + * Copyright (C) 2016-2019 GRATE-DRIVER project + */ + +#ifndef TEGRA_VDE_H +#define TEGRA_VDE_H + +#include <linux/completion.h> +#include <linux/dma-direction.h> +#include <linux/list.h> +#include <linux/miscdevice.h> +#include <linux/mutex.h> +#include <linux/types.h> +#include <linux/iova.h> + +struct clk; +struct dma_buf; +struct gen_pool; +struct iommu_group; +struct iommu_domain; +struct reset_control; +struct dma_buf_attachment; + +struct tegra_vde { + void __iomem *sxe; + void __iomem *bsev; + void __iomem *mbe; + void __iomem *ppe; + void __iomem *mce; + void __iomem *tfe; + void __iomem *ppb; + void __iomem *vdma; + void __iomem *frameid; + struct mutex lock; + struct mutex map_lock; + struct list_head map_list; + struct miscdevice miscdev; + struct reset_control *rst; + struct reset_control *rst_mc; + struct gen_pool *iram_pool; + struct completion decode_completion; + struct clk *clk; + struct iommu_domain *domain; + struct iommu_group *group; + struct iova_domain iova; + struct iova *iova_resv_static_addresses; + struct iova *iova_resv_last_page; + dma_addr_t iram_lists_addr; + u32 *iram; +}; + +int tegra_vde_iommu_init(struct tegra_vde *vde); +void tegra_vde_iommu_deinit(struct tegra_vde *vde); +int tegra_vde_iommu_map(struct tegra_vde *vde, + struct sg_table *sgt, + struct iova **iovap, + size_t size); +void tegra_vde_iommu_unmap(struct tegra_vde *vde, struct iova *iova); + +int tegra_vde_dmabuf_cache_map(struct tegra_vde *vde, + struct dma_buf *dmabuf, + enum dma_data_direction dma_dir, + struct dma_buf_attachment **ap, + dma_addr_t *addrp); +void tegra_vde_dmabuf_cache_unmap(struct tegra_vde *vde, + struct dma_buf_attachment *a, + bool release); +void tegra_vde_dmabuf_cache_unmap_sync(struct tegra_vde *vde); +void tegra_vde_dmabuf_cache_unmap_all(struct tegra_vde *vde); + +static __maybe_unused char const * +tegra_vde_reg_base_name(struct tegra_vde *vde, void __iomem *base) +{ + if (vde->sxe == base) + return "SXE"; + + if (vde->bsev == base) + return "BSEV"; + + if (vde->mbe == base) + return "MBE"; + + if (vde->ppe == base) + return "PPE"; + + if (vde->mce == base) + return "MCE"; + + if (vde->tfe == base) + return "TFE"; + + if (vde->ppb == base) + return "PPB"; + + if (vde->vdma == base) + return "VDMA"; + + if (vde->frameid == base) + return "FRAMEID"; + + return "???"; +} + +#endif /* TEGRA_VDE_H */ |