Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */ |
| 2 | /* |
| 3 | * Copyright (c) 2019 Amlogic, Inc. All rights reserved. |
| 4 | */ |
| 5 | |
| 6 | #ifndef __LINUX_AMLOGIC_ION_H__ |
| 7 | #define __LINUX_AMLOGIC_ION_H__ |
| 8 | |
| 9 | #include <linux/types.h> |
| 10 | #include <linux/ion.h> |
| 11 | |
| 12 | /** |
| 13 | * CUSTOM IOCTL - CMD |
| 14 | */ |
| 15 | |
| 16 | #define DION_ERROR(fmt, args ...) pr_err("ion_dev: " fmt, ## args) |
| 17 | #define DION_INFO(fmt, args ...) pr_info("ion_dev: " fmt, ## args) |
| 18 | #define DION_DEBUG(fmt, args ...) pr_debug("ion_dev: " fmt, ## args) |
| 19 | |
| 20 | #define ION_IOC_MESON_PHYS_ADDR 8 |
| 21 | #define ION_FLAG_EXTEND_MESON_SECURE_VDEC_HEAP BIT(28) |
| 22 | #define ION_FLAG_EXTEND_MESON_HEAP_SECURE BIT(29) |
| 23 | #define ION_FLAG_EXTEND_MESON_HEAP BIT(30) |
| 24 | #define ION_FLAG_EXTEND_PROTECTED BIT(31) |
| 25 | |
| 26 | struct ion_cma_heap { |
| 27 | struct ion_heap heap; |
| 28 | struct cma *cma; |
| 29 | |
| 30 | bool is_added; |
| 31 | unsigned long max_can_alloc_size; |
| 32 | unsigned long alloced_size; |
| 33 | /* protect size account */ |
| 34 | struct mutex mutex; |
| 35 | }; |
| 36 | |
| 37 | struct meson_phys_data { |
| 38 | int handle; |
| 39 | unsigned int phys_addr; |
| 40 | unsigned int size; |
| 41 | }; |
| 42 | |
| 43 | /** |
| 44 | * meson_ion_share_fd_to_phys - |
| 45 | * associate with a fd |
| 46 | * @fd: passed from the user space |
| 47 | * @addr point to the physical address |
| 48 | * @size point to the size of this ion buffer |
| 49 | */ |
| 50 | |
| 51 | int meson_ion_share_fd_to_phys(int fd, phys_addr_t *addr, size_t *len); |
| 52 | void meson_ion_buffer_to_phys(struct ion_buffer *buffer, |
| 53 | phys_addr_t *addr, size_t *len); |
| 54 | unsigned int meson_ion_cma_heap_id_get(void); |
| 55 | unsigned int meson_ion_fb_heap_id_get(void); |
| 56 | unsigned int meson_ion_codecmm_heap_id_get(void); |
| 57 | struct ion_heap *ion_secure_heap_create(phys_addr_t base, |
| 58 | unsigned long size); |
| 59 | void ion_secure_heap_destroy(struct ion_heap *heap); |
| 60 | |
| 61 | |
| 62 | extern struct ion_heap_ops codec_mm_heap_ops; |
| 63 | extern struct ion_heap_ops ion_cma_ops; |
| 64 | |
| 65 | #endif |