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/* 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/iova.h>
#include <linux/list.h>
#include <linux/miscdevice.h>
#include <linux/mutex.h>
#include <linux/types.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_soc {
bool supports_ref_pic_marking;
};
struct tegra_vde_bo {
struct iova *iova;
struct sg_table sgt;
struct tegra_vde *vde;
enum dma_data_direction dma_dir;
unsigned long dma_attrs;
dma_addr_t dma_handle;
dma_addr_t dma_addr;
void *dma_cookie;
size_t size;
};
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;
const struct tegra_vde_soc *soc;
struct tegra_vde_bo *secure_bo;
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 */
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