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drv_priv.h
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/*
* Copyright 2016 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef DRV_PRIV_H
#define DRV_PRIV_H
#include <pthread.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include <sys/types.h>
#include "drv.h"
struct bo_metadata {
uint32_t width;
uint32_t height;
uint32_t format;
uint32_t tiling;
size_t num_planes;
uint32_t offsets[DRV_MAX_PLANES];
uint32_t sizes[DRV_MAX_PLANES];
uint32_t strides[DRV_MAX_PLANES];
uint64_t format_modifier;
uint64_t use_flags;
size_t total_size;
bool cached;
/*
* Most of the following metadata is virtgpu cross_domain specific. However, that backend
* needs to know traditional metadata (strides, offsets) in addition to this backend
* specific metadata. It's easiest just to stuff all the metadata here rather than
* having two metadata structs.
*/
uint32_t blob_id;
uint32_t map_info;
int32_t memory_idx;
int32_t physical_device_idx;
};
struct bo {
struct driver *drv;
struct bo_metadata meta;
bool is_test_buffer;
/* handle are mandatory only for SCANOUT buffers */
union bo_handle handle;
uint32_t inode;
void *priv;
};
struct format_metadata {
uint32_t priority;
uint32_t tiling;
uint64_t modifier;
};
struct combination {
uint32_t format;
struct format_metadata metadata;
uint64_t use_flags;
};
struct driver {
int fd;
const struct backend *backend;
void *priv;
pthread_mutex_t buffer_table_lock;
void *buffer_table;
pthread_mutex_t mappings_lock;
struct drv_array *mappings;
struct drv_array *combos;
bool compression;
bool log_bos;
};
struct backend {
const char *name;
void (*preload)(bool load);
int (*init)(struct driver *drv);
void (*close)(struct driver *drv);
int (*bo_create)(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
uint64_t use_flags);
int (*bo_create_with_modifiers)(struct bo *bo, uint32_t width, uint32_t height,
uint32_t format, const uint64_t *modifiers, uint32_t count);
// Either both or neither _metadata functions must be implemented.
// If the functions are implemented, bo_create and bo_create_with_modifiers must not be.
int (*bo_compute_metadata)(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
uint64_t use_flags, const uint64_t *modifiers, uint32_t count);
int (*bo_create_from_metadata)(struct bo *bo);
/* Called for every non-test-buffer BO on free */
int (*bo_release)(struct bo *bo);
/* Called on free if this bo is the last object referencing the contained GEM BOs */
int (*bo_destroy)(struct bo *bo);
int (*bo_import)(struct bo *bo, struct drv_import_fd_data *data);
void *(*bo_map)(struct bo *bo, struct vma *vma, uint32_t map_flags);
int (*bo_unmap)(struct bo *bo, struct vma *vma);
int (*bo_invalidate)(struct bo *bo, struct mapping *mapping);
int (*bo_flush)(struct bo *bo, struct mapping *mapping);
int (*bo_get_plane_fd)(struct bo *bo, size_t plane);
uint32_t (*bo_get_map_stride)(struct bo *bo);
void (*resolve_format_and_use_flags)(struct driver *drv, uint32_t format,
uint64_t use_flags, uint32_t *out_format,
uint64_t *out_use_flags);
size_t (*num_planes_from_modifier)(struct driver *drv, uint32_t format, uint64_t modifier);
int (*resource_info)(struct bo *bo, uint32_t strides[DRV_MAX_PLANES],
uint32_t offsets[DRV_MAX_PLANES], uint64_t *format_modifier);
uint32_t (*get_max_texture_2d_size)(struct driver *drv);
};
// clang-format off
#define BO_USE_RENDER_MASK (BO_USE_LINEAR | BO_USE_RENDERING | BO_USE_RENDERSCRIPT | \
BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN | BO_USE_SW_READ_RARELY | \
BO_USE_SW_WRITE_RARELY | BO_USE_TEXTURE | BO_USE_FRONT_RENDERING)
#define BO_USE_TEXTURE_MASK (BO_USE_LINEAR | BO_USE_RENDERSCRIPT | BO_USE_SW_READ_OFTEN | \
BO_USE_SW_WRITE_OFTEN | BO_USE_SW_READ_RARELY | \
BO_USE_SW_WRITE_RARELY | BO_USE_TEXTURE | BO_USE_FRONT_RENDERING)
#define BO_USE_SW_MASK (BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN | \
BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY | BO_USE_FRONT_RENDERING)
#define BO_USE_GPU_HW (BO_USE_RENDERING | BO_USE_TEXTURE | BO_USE_GPU_DATA_BUFFER)
#define BO_USE_NON_GPU_HW (BO_USE_SCANOUT | BO_USE_CAMERA_WRITE | BO_USE_CAMERA_READ | \
BO_USE_HW_VIDEO_ENCODER | BO_USE_HW_VIDEO_DECODER | BO_USE_SENSOR_DIRECT_DATA)
#define BO_USE_HW_MASK (BO_USE_GPU_HW | BO_USE_NON_GPU_HW)
#ifndef DRM_FORMAT_MOD_LINEAR
#define DRM_FORMAT_MOD_LINEAR DRM_FORMAT_MOD_NONE
#endif
#define LINEAR_METADATA (struct format_metadata) { 1, 0, DRM_FORMAT_MOD_LINEAR }
#define MESA_LLVMPIPE_MAX_TEXTURE_2D_LEVELS 15
#define MESA_LLVMPIPE_MAX_TEXTURE_2D_SIZE (1 << (MESA_LLVMPIPE_MAX_TEXTURE_2D_LEVELS - 1))
#define MESA_LLVMPIPE_TILE_ORDER 6
#define MESA_LLVMPIPE_TILE_SIZE (1 << MESA_LLVMPIPE_TILE_ORDER)
// clang-format on
#endif