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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-05-10 11:43:46 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-05-10 11:43:46 -0700 |
| commit | 2a267e7c41aa88215de2b542de797d03d16ecdfd (patch) | |
| tree | b949270835e304c8b60a40cde1b2c2e19c13b33a /drivers/staging/media/ipu3/ipu3-mmu.h | |
| parent | Input: libps2 - mark expected switch fall-through (diff) | |
| parent | Linux 5.1 (diff) | |
| download | linux-dev-2a267e7c41aa88215de2b542de797d03d16ecdfd.tar.xz linux-dev-2a267e7c41aa88215de2b542de797d03d16ecdfd.zip | |
Merge tag 'v5.1' into next
Sync up with mainline to bring in the latest APIs.
Diffstat (limited to 'drivers/staging/media/ipu3/ipu3-mmu.h')
| -rw-r--r-- | drivers/staging/media/ipu3/ipu3-mmu.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/staging/media/ipu3/ipu3-mmu.h b/drivers/staging/media/ipu3/ipu3-mmu.h new file mode 100644 index 000000000000..fa58827eb19c --- /dev/null +++ b/drivers/staging/media/ipu3/ipu3-mmu.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2018 Intel Corporation */ +/* Copyright 2018 Google LLC. */ + +#ifndef __IPU3_MMU_H +#define __IPU3_MMU_H + +/** + * struct imgu_mmu_info - Describes mmu geometry + * + * @aperture_start: First address that can be mapped + * @aperture_end: Last address that can be mapped + * @pgsize_bitmap: Bitmap of page sizes in use + */ +struct imgu_mmu_info { + dma_addr_t aperture_start; + dma_addr_t aperture_end; + unsigned long pgsize_bitmap; +}; + +struct device; +struct scatterlist; + +struct imgu_mmu_info *imgu_mmu_init(struct device *parent, void __iomem *base); +void imgu_mmu_exit(struct imgu_mmu_info *info); +void imgu_mmu_suspend(struct imgu_mmu_info *info); +void imgu_mmu_resume(struct imgu_mmu_info *info); + +int imgu_mmu_map(struct imgu_mmu_info *info, unsigned long iova, + phys_addr_t paddr, size_t size); +size_t imgu_mmu_unmap(struct imgu_mmu_info *info, unsigned long iova, + size_t size); +size_t imgu_mmu_map_sg(struct imgu_mmu_info *info, unsigned long iova, + struct scatterlist *sg, unsigned int nents); +#endif |