]>
Commit | Line | Data |
---|---|---|
a49d2536 AC |
1 | /* |
2 | * Support for Medifield PNW Camera Imaging ISP subsystem. | |
3 | * | |
4 | * Copyright (c) 2010 Intel Corporation. All Rights Reserved. | |
5 | * | |
6 | * Copyright (c) 2010 Silicon Hive www.siliconhive.com. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License version | |
10 | * 2 as published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
a49d2536 AC |
17 | * |
18 | */ | |
19 | ||
20 | #ifndef __HMM_H__ | |
21 | #define __HMM_H__ | |
22 | ||
23 | #include <linux/kernel.h> | |
24 | #include <linux/types.h> | |
25 | #include <linux/slab.h> | |
26 | #include <linux/mm.h> | |
27 | ||
28 | #include "hmm/hmm_pool.h" | |
29 | #include "ia_css_types.h" | |
30 | ||
31 | #define HMM_CACHED true | |
32 | #define HMM_UNCACHED false | |
33 | ||
34 | int hmm_pool_register(unsigned int pool_size, enum hmm_pool_type pool_type); | |
35 | void hmm_pool_unregister(enum hmm_pool_type pool_type); | |
36 | ||
37 | int hmm_init(void); | |
38 | void hmm_cleanup(void); | |
39 | ||
40 | ia_css_ptr hmm_alloc(size_t bytes, enum hmm_bo_type type, | |
41 | int from_highmem, void *userptr, bool cached); | |
42 | void hmm_free(ia_css_ptr ptr); | |
43 | int hmm_load(ia_css_ptr virt, void *data, unsigned int bytes); | |
44 | int hmm_store(ia_css_ptr virt, const void *data, unsigned int bytes); | |
45 | int hmm_set(ia_css_ptr virt, int c, unsigned int bytes); | |
46 | int hmm_flush(ia_css_ptr virt, unsigned int bytes); | |
47 | ||
48 | /* | |
49 | * get kernel memory physical address from ISP virtual address. | |
50 | */ | |
51 | phys_addr_t hmm_virt_to_phys(ia_css_ptr virt); | |
52 | ||
53 | /* | |
54 | * map ISP memory starts with virt to kernel virtual address | |
55 | * by using vmap. return NULL if failed. | |
56 | * | |
57 | * virt must be the start address of ISP memory (return by hmm_alloc), | |
58 | * do not pass any other address. | |
59 | */ | |
60 | void *hmm_vmap(ia_css_ptr virt, bool cached); | |
61 | void hmm_vunmap(ia_css_ptr virt); | |
62 | ||
63 | /* | |
64 | * flush the cache for the vmapped buffer. | |
65 | * if the buffer has not been vmapped, return directly. | |
66 | */ | |
67 | void hmm_flush_vmap(ia_css_ptr virt); | |
68 | ||
69 | /* | |
70 | * Address translation from ISP shared memory address to kernel virtual address | |
71 | * if the memory is not vmmaped, then do it. | |
72 | */ | |
73 | void *hmm_isp_vaddr_to_host_vaddr(ia_css_ptr ptr, bool cached); | |
74 | ||
75 | /* | |
76 | * Address translation from kernel virtual address to ISP shared memory address | |
77 | */ | |
78 | ia_css_ptr hmm_host_vaddr_to_hrt_vaddr(const void *ptr); | |
79 | ||
80 | /* | |
81 | * map ISP memory starts with virt to specific vma. | |
82 | * | |
83 | * used for mmap operation. | |
84 | * | |
85 | * virt must be the start address of ISP memory (return by hmm_alloc), | |
86 | * do not pass any other address. | |
87 | */ | |
88 | int hmm_mmap(struct vm_area_struct *vma, ia_css_ptr virt); | |
89 | ||
90 | /* show memory statistic | |
91 | */ | |
92 | void hmm_show_mem_stat(const char *func, const int line); | |
93 | ||
94 | /* init memory statistic | |
95 | */ | |
96 | void hmm_init_mem_stat(int res_pgnr, int dyc_en, int dyc_pgnr); | |
97 | ||
98 | extern bool dypool_enable; | |
99 | extern unsigned int dypool_pgnr; | |
100 | extern struct hmm_bo_device bo_device; | |
101 | ||
102 | #endif |