1 /* 2 * Copyright 2014 The Chromium OS Authors. All rights reserved. 3 * Use of this source code is governed by a BSD-style license that can be 4 * found in the LICENSE file. 5 */ 6 7 #ifndef DRV_HELPERS_H 8 #define DRV_HELPERS_H 9 10 #ifdef __cplusplus 11 extern "C" { 12 #endif 13 14 #include <stdbool.h> 15 16 #include "drv.h" 17 #include "drv_array_helpers.h" 18 19 #ifndef PAGE_SIZE 20 #define PAGE_SIZE 0x1000 21 #endif 22 23 struct format_metadata; 24 25 uint32_t drv_height_from_format(uint32_t format, uint32_t height, size_t plane); 26 uint32_t drv_vertical_subsampling_from_format(uint32_t format, size_t plane); 27 uint32_t drv_size_from_format(uint32_t format, uint32_t stride, uint32_t height, size_t plane); 28 int drv_bo_from_format(struct bo *bo, uint32_t stride, uint32_t stride_align, 29 uint32_t aligned_height, uint32_t format); 30 int drv_bo_from_format_and_padding(struct bo *bo, uint32_t stride, uint32_t stride_align, 31 uint32_t aligned_height, uint32_t format, 32 uint32_t padding[DRV_MAX_PLANES]); 33 int drv_dumb_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format, 34 uint64_t use_flags); 35 int drv_dumb_bo_create_ex(struct bo *bo, uint32_t width, uint32_t height, uint32_t format, 36 uint64_t use_flags, uint64_t quirks); 37 int drv_dumb_bo_destroy(struct bo *bo); 38 int drv_gem_close(struct driver *drv, uint32_t gem_handle); 39 int drv_gem_bo_destroy(struct bo *bo); 40 int drv_prime_bo_import(struct bo *bo, struct drv_import_fd_data *data); 41 void *drv_dumb_bo_map(struct bo *bo, struct vma *vma, uint32_t map_flags); 42 int drv_bo_munmap(struct bo *bo, struct vma *vma); 43 int drv_get_prot(uint32_t map_flags); 44 void drv_add_combination(struct driver *drv, uint32_t format, struct format_metadata *metadata, 45 uint64_t usage); 46 void drv_add_combinations(struct driver *drv, const uint32_t *formats, uint32_t num_formats, 47 struct format_metadata *metadata, uint64_t usage); 48 void drv_modify_combination(struct driver *drv, uint32_t format, struct format_metadata *metadata, 49 uint64_t usage); 50 int drv_modify_linear_combinations(struct driver *drv); 51 uint64_t drv_pick_modifier(const uint64_t *modifiers, uint32_t count, 52 const uint64_t *modifier_order, uint32_t order_count); 53 bool drv_has_modifier(const uint64_t *list, uint32_t count, uint64_t modifier); 54 void drv_resolve_format_and_use_flags_helper(struct driver *drv, uint32_t format, 55 uint64_t use_flags, uint32_t *out_format, 56 uint64_t *out_use_flags); 57 58 /* 59 * Get an option. Should return NULL if specified option is not set. 60 */ 61 const char *drv_get_os_option(const char *name); 62 63 struct lru_entry { 64 struct lru_entry *next; 65 struct lru_entry *prev; 66 }; 67 68 struct lru { 69 struct lru_entry head; 70 int count; 71 int max; 72 }; 73 74 struct lru_entry *lru_find(struct lru *lru, bool (*eq)(struct lru_entry *e, void *data), 75 void *data); 76 void lru_insert(struct lru *lru, struct lru_entry *entry); 77 void lru_init(struct lru *lru, int max); 78 79 #ifdef __cplusplus 80 } 81 #endif 82 83 #endif 84