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      1 /*
      2  * Copyright 2016 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_PRIV_H
      8 #define DRV_PRIV_H
      9 
     10 #include <pthread.h>
     11 #include <stdint.h>
     12 #include <stdlib.h>
     13 #include <sys/types.h>
     14 
     15 #include "drv.h"
     16 
     17 struct bo {
     18 	struct driver *drv;
     19 	uint32_t width;
     20 	uint32_t height;
     21 	uint32_t format;
     22 	uint32_t tiling;
     23 	size_t num_planes;
     24 	union bo_handle handles[DRV_MAX_PLANES];
     25 	uint32_t offsets[DRV_MAX_PLANES];
     26 	uint32_t sizes[DRV_MAX_PLANES];
     27 	uint32_t strides[DRV_MAX_PLANES];
     28 	uint64_t format_modifiers[DRV_MAX_PLANES];
     29 	uint64_t use_flags;
     30 	size_t total_size;
     31 	void *priv;
     32 };
     33 
     34 struct kms_item {
     35 	uint32_t format;
     36 	uint64_t modifier;
     37 	uint64_t use_flags;
     38 };
     39 
     40 struct format_metadata {
     41 	uint32_t priority;
     42 	uint32_t tiling;
     43 	uint64_t modifier;
     44 };
     45 
     46 struct combination {
     47 	uint32_t format;
     48 	struct format_metadata metadata;
     49 	uint64_t use_flags;
     50 };
     51 
     52 struct driver {
     53 	int fd;
     54 	const struct backend *backend;
     55 	void *priv;
     56 	void *buffer_table;
     57 	struct drv_array *mappings;
     58 	struct drv_array *combos;
     59 	pthread_mutex_t driver_lock;
     60 };
     61 
     62 struct backend {
     63 	char *name;
     64 	int (*init)(struct driver *drv);
     65 	void (*close)(struct driver *drv);
     66 	int (*bo_create)(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
     67 			 uint64_t use_flags);
     68 	int (*bo_create_with_modifiers)(struct bo *bo, uint32_t width, uint32_t height,
     69 					uint32_t format, const uint64_t *modifiers, uint32_t count);
     70 	int (*bo_destroy)(struct bo *bo);
     71 	int (*bo_import)(struct bo *bo, struct drv_import_fd_data *data);
     72 	void *(*bo_map)(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags);
     73 	int (*bo_unmap)(struct bo *bo, struct vma *vma);
     74 	int (*bo_invalidate)(struct bo *bo, struct mapping *mapping);
     75 	int (*bo_flush)(struct bo *bo, struct mapping *mapping);
     76 	uint32_t (*resolve_format)(uint32_t format, uint64_t use_flags);
     77 };
     78 
     79 // clang-format off
     80 #define BO_USE_RENDER_MASK BO_USE_LINEAR | BO_USE_PROTECTED | BO_USE_RENDERING | \
     81 	                   BO_USE_RENDERSCRIPT | BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN | \
     82                            BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY | BO_USE_TEXTURE
     83 
     84 #define BO_USE_TEXTURE_MASK BO_USE_LINEAR | BO_USE_PROTECTED | BO_USE_RENDERSCRIPT | \
     85 	                    BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN | \
     86                             BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY | BO_USE_TEXTURE
     87 
     88 #define BO_USE_SW BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN | \
     89 	    BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY
     90 
     91 #define BO_USE_SW_OFTEN BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN
     92 
     93 #define BO_USE_SW_RARELY BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY
     94 
     95 #ifndef DRM_FORMAT_MOD_LINEAR
     96 #define DRM_FORMAT_MOD_LINEAR DRM_FORMAT_MOD_NONE
     97 #endif
     98 
     99 #define LINEAR_METADATA (struct format_metadata) { 1, 0, DRM_FORMAT_MOD_LINEAR }
    100 // clang-format on
    101 
    102 #endif
    103