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drv_priv.h
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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_modifiers[DRV_MAX_PLANES];
uint64_t use_flags;
size_t total_size;
};
struct bo {
struct driver *drv;
struct bo_metadata meta;
bool is_test_buffer;
union bo_handle handles[DRV_MAX_PLANES];
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;
};
enum CIV_GPU_TYPE {
ONE_GPU_INTEL = 1,
ONE_GPU_VIRTIO,
TWO_GPU_IGPU_VIRTIO,
TWO_GPU_IGPU_DGPU,
THREE_GPU_IGPU_VIRTIO_DGPU
};
struct driver {
int fd;
const struct backend *backend;
void *priv;
void *buffer_table;
uint32_t gpu_grp_type; // enum CIV_GPU_TYPE
struct drv_array *mappings;
struct drv_array *combos;
pthread_mutex_t driver_lock;
};
struct backend {
char *name;
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);
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, size_t plane, 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);
uint32_t (*resolve_format)(struct driver *drv, uint32_t format, uint64_t 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]);
};
// clang-format off
#define BO_USE_RENDER_MASK (BO_USE_LINEAR | BO_USE_PROTECTED | 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)
#define BO_USE_TEXTURE_MASK (BO_USE_LINEAR | BO_USE_PROTECTED | 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)
#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)
#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)
#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 }
// clang-format on
#endif