1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Support for Intel Camera Imaging ISP subsystem. 4 * Copyright (c) 2010 - 2015, Intel Corporation. 5 */ 6 7 #ifndef _IA_CSS_RMGR_VBUF_H 8 #define _IA_CSS_RMGR_VBUF_H 9 10 #include "ia_css_rmgr.h" 11 #include <type_support.h> 12 #include <ia_css_types.h> 13 #include <system_local.h> 14 15 /** 16 * @brief Data structure for the resource handle (host, vbuf) 17 */ 18 struct ia_css_rmgr_vbuf_handle { 19 ia_css_ptr vptr; 20 u8 count; 21 u32 size; 22 }; 23 24 /** 25 * @brief Data structure for the resource pool (host, vbuf) 26 */ 27 struct ia_css_rmgr_vbuf_pool { 28 u8 copy_on_write; 29 u8 recycle; 30 u32 size; 31 u32 index; 32 struct ia_css_rmgr_vbuf_handle **handles; 33 }; 34 35 /** 36 * @brief VBUF resource pools 37 */ 38 extern struct ia_css_rmgr_vbuf_pool *vbuf_ref; 39 extern struct ia_css_rmgr_vbuf_pool *vbuf_write; 40 extern struct ia_css_rmgr_vbuf_pool *hmm_buffer_pool; 41 42 /** 43 * @brief Initialize the resource pool (host, vbuf) 44 * 45 * @param pool The pointer to the pool 46 */ 47 STORAGE_CLASS_RMGR_H int ia_css_rmgr_init_vbuf( 48 struct ia_css_rmgr_vbuf_pool *pool); 49 50 /** 51 * @brief Uninitialize the resource pool (host, vbuf) 52 * 53 * @param pool The pointer to the pool 54 */ 55 STORAGE_CLASS_RMGR_H void ia_css_rmgr_uninit_vbuf( 56 struct ia_css_rmgr_vbuf_pool *pool); 57 58 /** 59 * @brief Acquire a handle from the pool (host, vbuf) 60 * 61 * @param pool The pointer to the pool 62 * @param handle The pointer to the handle 63 */ 64 STORAGE_CLASS_RMGR_H void ia_css_rmgr_acq_vbuf( 65 struct ia_css_rmgr_vbuf_pool *pool, 66 struct ia_css_rmgr_vbuf_handle **handle); 67 68 /** 69 * @brief Release a handle to the pool (host, vbuf) 70 * 71 * @param pool The pointer to the pool 72 * @param handle The pointer to the handle 73 */ 74 STORAGE_CLASS_RMGR_H void ia_css_rmgr_rel_vbuf( 75 struct ia_css_rmgr_vbuf_pool *pool, 76 struct ia_css_rmgr_vbuf_handle **handle); 77 78 /** 79 * @brief Retain the reference count for a handle (host, vbuf) 80 * 81 * @param handle The pointer to the handle 82 */ 83 void ia_css_rmgr_refcount_retain_vbuf(struct ia_css_rmgr_vbuf_handle **handle); 84 85 /** 86 * @brief Release the reference count for a handle (host, vbuf) 87 * 88 * @param handle The pointer to the handle 89 */ 90 void ia_css_rmgr_refcount_release_vbuf(struct ia_css_rmgr_vbuf_handle **handle); 91 92 #endif /* _IA_CSS_RMGR_VBUF_H */ 93