mirror of https://gitee.com/openkylin/linux.git
88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
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/*
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* Tegra host1x Memory Management Abstraction header
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*
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* Copyright (c) 2012-2013, NVIDIA Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _HOST1X_BO_H
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#define _HOST1X_BO_H
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struct host1x_bo;
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struct host1x_bo_ops {
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struct host1x_bo *(*get)(struct host1x_bo *bo);
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void (*put)(struct host1x_bo *bo);
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dma_addr_t (*pin)(struct host1x_bo *bo, struct sg_table **sgt);
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void (*unpin)(struct host1x_bo *bo, struct sg_table *sgt);
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void *(*mmap)(struct host1x_bo *bo);
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void (*munmap)(struct host1x_bo *bo, void *addr);
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void *(*kmap)(struct host1x_bo *bo, unsigned int pagenum);
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void (*kunmap)(struct host1x_bo *bo, unsigned int pagenum, void *addr);
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};
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struct host1x_bo {
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const struct host1x_bo_ops *ops;
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};
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static inline void host1x_bo_init(struct host1x_bo *bo,
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const struct host1x_bo_ops *ops)
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{
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bo->ops = ops;
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}
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static inline struct host1x_bo *host1x_bo_get(struct host1x_bo *bo)
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{
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return bo->ops->get(bo);
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}
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static inline void host1x_bo_put(struct host1x_bo *bo)
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{
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bo->ops->put(bo);
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}
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static inline dma_addr_t host1x_bo_pin(struct host1x_bo *bo,
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struct sg_table **sgt)
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{
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return bo->ops->pin(bo, sgt);
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}
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static inline void host1x_bo_unpin(struct host1x_bo *bo, struct sg_table *sgt)
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{
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bo->ops->unpin(bo, sgt);
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}
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static inline void *host1x_bo_mmap(struct host1x_bo *bo)
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{
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return bo->ops->mmap(bo);
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}
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static inline void host1x_bo_munmap(struct host1x_bo *bo, void *addr)
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{
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bo->ops->munmap(bo, addr);
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}
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static inline void *host1x_bo_kmap(struct host1x_bo *bo, unsigned int pagenum)
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{
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return bo->ops->kmap(bo, pagenum);
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}
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static inline void host1x_bo_kunmap(struct host1x_bo *bo,
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unsigned int pagenum, void *addr)
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{
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bo->ops->kunmap(bo, pagenum, addr);
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}
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#endif
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