threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
148 lines
4.1 KiB
C
148 lines
4.1 KiB
C
/*
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* Copyright (c) 2017 MediaTek Inc.
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* Author: Fish Wu <fish.wu@mediatek.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __VPUBUF_CORE_H__
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#define __VPUBUF_CORE_H__
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#include <linux/mm_types.h>
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#include <linux/mutex.h>
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#include <linux/poll.h>
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#include <linux/dma-buf.h>
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#include <uapi/mediatek/vpu_ioctl.h>
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/* #define MTK_VPU_SUPPORT_ION */
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struct vpu_device;
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struct vpu_alloc_ctx;
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struct vpu_mem_ops {
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void *(*alloc)(void *alloc_ctx, unsigned long size,
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enum dma_data_direction dma_dir, gfp_t gfp_flags,
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unsigned int is_cached);
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void (*put)(void *buf_priv);
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struct dma_buf *(*get_dmabuf)(void *buf_priv, unsigned long flags);
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void *(*get_userptr)(void *alloc_ctx, unsigned long vaddr,
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unsigned long size,
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enum dma_data_direction dma_dir);
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void (*put_userptr)(void *buf_priv);
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void (*prepare)(void *buf_priv);
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void (*finish)(void *buf_priv);
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void *(*attach_dmabuf)(void *alloc_ctx, struct dma_buf *dbuf,
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unsigned long size,
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enum dma_data_direction dma_dir);
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void (*detach_dmabuf)(void *buf_priv);
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int (*map_dmabuf)(void *buf_priv);
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void (*unmap_dmabuf)(void *buf_priv);
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void *(*vaddr)(void *buf_priv);
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void *(*cookie)(void *buf_priv);
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unsigned int (*num_users)(void *buf_priv);
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int (*mmap)(void *buf_priv, struct vm_area_struct *vma);
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};
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struct vpu_map_ops {
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void (*init_phy_iova)(struct vpu_device *vpu_device);
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void (*deinit_phy_iova)(struct vpu_device *vpu_device);
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struct vpu_kernel_buf *(*kmap_phy_iova)(struct vpu_device *vpu_device,
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uint32_t usage,
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uint64_t phy_addr,
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uint64_t kva_addr,
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uint32_t iova_addr,
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uint32_t size);
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void (*kunmap_phy_iova)(struct vpu_device *vpu_device,
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struct vpu_kernel_buf *vkbuf);
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uint64_t (*import_handle)(struct vpu_device *vpu_device, int fd);
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void (*free_handle)(struct vpu_device *vpu_device, uint64_t id);
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};
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struct vpu_kbuffer {
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struct vpu_manage *vpu_manage;
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unsigned int memory;
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unsigned int is_cached;
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void *mem_priv;
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unsigned int dma_addr; /* IOVA */
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void *vaddr; /* kernel virtual address */
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struct dma_buf *dbuf;
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unsigned int dbuf_mapped;
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unsigned int length; /* buffer size */
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int dma_fd; /* for DMABUF */
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};
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struct vpu_manage {
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const struct vpu_mem_ops *mem_ops;
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/* dynamic memory allocation */
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struct mutex buf_mutex;
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struct list_head buf_list;
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unsigned int buf_num;
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void *alloc_ctx;
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};
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enum vkbuf_method {
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VKBUF_METHOD_ION = 0,
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VKBUF_METHOD_STD = 1,
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};
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enum vkbuf_map_case {
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VKBUF_MAP_FPHY_FIOVA,
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VKBUF_MAP_FPHY_DIOVA,
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VKBUF_MAP_DPHY_FIOVA,
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VKBUF_MAP_DPHY_DIOVA,
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};
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struct vpu_kernel_buf {
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uint64_t handle;
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uint32_t usage;
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struct sg_table sg;
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uint64_t phy_addr;
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uint32_t iova_addr;
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uint32_t size;
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void *kva;
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};
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struct vpu_dbg_buf {
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uint64_t handle;
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};
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extern struct vpu_map_ops vpu_ion_mapops;
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extern struct vpu_map_ops vpu_dma_mapops;
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/* For IOCTL */
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int vbuf_std_info(struct vpu_device *vpu_device, struct vbuf_info *info_ctx);
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int vbuf_std_alloc(struct vpu_device *vpu_device, struct vbuf_alloc *alloc_ctx);
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int vbuf_std_free(struct vpu_device *vpu_device, struct vbuf_free *free_ctx);
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int vbuf_std_sync(struct vpu_device *vpu_device, struct vbuf_sync *sync_ctx);
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int vbuf_std_init(struct vpu_device *vpu_device);
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void vbuf_std_deinit(struct vpu_device *vpu_device);
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void vbuf_init_phy_iova(struct vpu_device *vpu_device);
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void vbuf_deinit_phy_iova(struct vpu_device *vpu_device);
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struct vpu_kernel_buf *vbuf_kmap_phy_iova(struct vpu_device *vpu_device,
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uint32_t usage, uint64_t phy_addr,
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uint64_t kva_addr, uint32_t iova_addr,
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uint32_t size);
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void vbuf_kunmap_phy_iova(struct vpu_device *vpu_device,
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struct vpu_kernel_buf *vkbuf);
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uint64_t vbuf_import_handle(struct vpu_device *vpu_device, int fd);
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void vbuf_free_handle(struct vpu_device *vpu_device, uint64_t handle);
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#endif
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