diff options
Diffstat (limited to 'drivers/gpu/host1x/host1x_bo.h')
-rw-r--r-- | drivers/gpu/host1x/host1x_bo.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/host1x_bo.h b/drivers/gpu/host1x/host1x_bo.h new file mode 100644 index 00000000000..4c1f10bd773 --- /dev/null +++ b/drivers/gpu/host1x/host1x_bo.h @@ -0,0 +1,87 @@ +/* + * Tegra host1x Memory Management Abstraction header + * + * Copyright (c) 2012-2013, NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _HOST1X_BO_H +#define _HOST1X_BO_H + +struct host1x_bo; + +struct host1x_bo_ops { + struct host1x_bo *(*get)(struct host1x_bo *bo); + void (*put)(struct host1x_bo *bo); + dma_addr_t (*pin)(struct host1x_bo *bo, struct sg_table **sgt); + void (*unpin)(struct host1x_bo *bo, struct sg_table *sgt); + void *(*mmap)(struct host1x_bo *bo); + void (*munmap)(struct host1x_bo *bo, void *addr); + void *(*kmap)(struct host1x_bo *bo, unsigned int pagenum); + void (*kunmap)(struct host1x_bo *bo, unsigned int pagenum, void *addr); +}; + +struct host1x_bo { + const struct host1x_bo_ops *ops; +}; + +static inline void host1x_bo_init(struct host1x_bo *bo, + const struct host1x_bo_ops *ops) +{ + bo->ops = ops; +} + +static inline struct host1x_bo *host1x_bo_get(struct host1x_bo *bo) +{ + return bo->ops->get(bo); +} + +static inline void host1x_bo_put(struct host1x_bo *bo) +{ + bo->ops->put(bo); +} + +static inline dma_addr_t host1x_bo_pin(struct host1x_bo *bo, + struct sg_table **sgt) +{ + return bo->ops->pin(bo, sgt); +} + +static inline void host1x_bo_unpin(struct host1x_bo *bo, struct sg_table *sgt) +{ + bo->ops->unpin(bo, sgt); +} + +static inline void *host1x_bo_mmap(struct host1x_bo *bo) +{ + return bo->ops->mmap(bo); +} + +static inline void host1x_bo_munmap(struct host1x_bo *bo, void *addr) +{ + bo->ops->munmap(bo, addr); +} + +static inline void *host1x_bo_kmap(struct host1x_bo *bo, unsigned int pagenum) +{ + return bo->ops->kmap(bo, pagenum); +} + +static inline void host1x_bo_kunmap(struct host1x_bo *bo, + unsigned int pagenum, void *addr) +{ + bo->ops->kunmap(bo, pagenum, addr); +} + +#endif |