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/*
* SPDX-License-Identifier: MIT
*
* Copyright © 2016 Intel Corporation
*/
#ifndef __I915_GEM_OBJECT_H__
#define __I915_GEM_OBJECT_H__
#include <drm/drm_gem.h>
#include <drm/drm_file.h>
#include <drm/drm_device.h>
#include <drm/i915_drm.h>
#include "display/intel_frontbuffer.h"
#include "i915_gem_object_types.h"
#include "i915_gem_gtt.h"
#include "i915_vma_types.h"
void i915_gem_init__objects(struct drm_i915_private *i915);
struct drm_i915_gem_object *i915_gem_object_alloc(void);
void i915_gem_object_free(struct drm_i915_gem_object *obj);
void i915_gem_object_init(struct drm_i915_gem_object *obj,
const struct drm_i915_gem_object_ops *ops,
struct lock_class_key *key);
struct drm_i915_gem_object *
i915_gem_object_create_shmem(struct drm_i915_private *i915,
resource_size_t size);
struct drm_i915_gem_object *
i915_gem_object_create_shmem_from_data(struct drm_i915_private *i915,
const void *data, resource_size_t size);
extern const struct drm_i915_gem_object_ops i915_gem_shmem_ops;
void __i915_gem_object_release_shmem(struct drm_i915_gem_object *obj,
struct sg_table *pages,
bool needs_clflush);
int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj, int align);
void i915_gem_close_object(struct drm_gem_object *gem, struct drm_file *file);
void i915_gem_free_object(struct drm_gem_object *obj);
void i915_gem_flush_free_objects(struct drm_i915_private *i915);
struct sg_table *
__i915_gem_object_unset_pages(struct drm_i915_gem_object *obj);
void i915_gem_object_truncate(struct drm_i915_gem_object *obj);
/**
* i915_gem_object_lookup_rcu - look up a temporary GEM object from its handle
* @filp: DRM file private date
* @handle: userspace handle
*
* Returns:
*
* A pointer to the object named by the handle if such exists on @filp, NULL
* otherwise. This object is only valid whilst under the RCU read lock, and
* note carefully the object may be in the process of being destroyed.
*/
static inline struct drm_i915_gem_object *
i915_gem_object_lookup_rcu(struct drm_file *file, u32 handle)
{
#ifdef CONFIG_LOCKDEP
WARN_ON(debug_locks && !lock_is_held(&rcu_lock_map));
#endif
return idr_find(&file->object_idr, handle);
}
static inline struct drm_i915_gem_object *
i915_gem_object_lookup(struct drm_file *file, u32 handle)
{
struct drm_i915_gem_object *obj;
rcu_read_lock();
obj = i915_gem_object_lookup_rcu(file, handle);
if (obj && !kref_get_unless_zero(&obj->base.refcount))
obj = NULL;
rcu_read_unlock();
return obj;
}
__deprecated
struct drm_gem_object *
drm_gem_object_lookup(struct drm_file *file, u32 handle);
__attribute__((nonnull))
static inline struct drm_i915_gem_object *
i915_gem_object_get(struct drm_i915_gem_object *obj)
{
drm_gem_object_get(&obj->base);
return obj;
}
__attribute__((nonnull))
static inline void
i915_gem_object_put(struct drm_i915_gem_object *obj)
{
__drm_gem_object_put(&obj->base);
}
#define assert_object_held(obj) dma_resv_assert_held((obj)->base.resv)
static inline void i915_gem_object_lock(struct drm_i915_gem_object *obj)
{
dma_resv_lock(obj->base.resv, NULL);
}
static inline bool i915_gem_object_trylock(struct drm_i915_gem_object *obj)
{
return dma_resv_trylock(obj->base.resv);
}
static inline int
i915_gem_object_lock_interruptible(struct drm_i915_gem_object *obj)
{
return dma_resv_lock_interruptible(obj->base.resv, NULL);
}
static inline void i915_gem_object_unlock(struct drm_i915_gem_object *obj)
{
dma_resv_unlock(obj->base.resv);
}
struct dma_fence *
i915_gem_object_lock_fence(struct drm_i915_gem_object *obj);
void i915_gem_object_unlock_fence(struct drm_i915_gem_object *obj,
struct dma_fence *fence);
static inline void
i915_gem_object_set_readonly(struct drm_i915_gem_object *obj)
{
obj->flags |= I915_BO_READONLY;
}
static inline bool
i915_gem_object_is_readonly(const struct drm_i915_gem_object *obj)
{
return obj->flags & I915_BO_READONLY;
}
static inline bool
i915_gem_object_is_contiguous(const struct drm_i915_gem_object *obj)
{
return obj->flags & I915_BO_ALLOC_CONTIGUOUS;
}
static inline bool
i915_gem_object_is_volatile(const struct drm_i915_gem_object *obj)
{
return obj->flags & I915_BO_ALLOC_VOLATILE;
}
static inline void
i915_gem_object_set_volatile(struct drm_i915_gem_object *obj)
{
obj->flags |= I915_BO_ALLOC_VOLATILE;
}
static inline bool
i915_gem_object_type_has(const struct drm_i915_gem_object *obj,
unsigned long flags)
{
return obj->ops->flags & flags;
}
static inline bool
i915_gem_object_has_struct_page(const struct drm_i915_gem_object *obj)
{
return i915_gem_object_type_has(obj, I915_GEM_OBJECT_HAS_STRUCT_PAGE);
}
static inline bool
i915_gem_object_is_shrinkable(const struct drm_i915_gem_object *obj)
{
return i915_gem_object_type_has(obj, I915_GEM_OBJECT_IS_SHRINKABLE);
}
static inline bool
i915_gem_object_is_proxy(const struct drm_i915_gem_object *obj)
{
return i915_gem_object_type_has(obj, I915_GEM_OBJECT_IS_PROXY);
}
static inline bool
i915_gem_object_never_bind_ggtt(const struct drm_i915_gem_object *obj)
{
return i915_gem_object_type_has(obj, I915_GEM_OBJECT_NO_GGTT);
}
static inline bool
i915_gem_object_needs_async_cancel(const struct drm_i915_gem_object *obj)
{
return i915_gem_object_type_has(obj, I915_GEM_OBJECT_ASYNC_CANCEL);
}
static inline bool
i915_gem_object_is_framebuffer(const struct drm_i915_gem_object *obj)
{
return READ_ONCE(obj->frontbuffer);
}
static inline unsigned int
i915_gem_object_get_tiling(const struct drm_i915_gem_object *obj)
{
return obj->tiling_and_stride & TILING_MASK;
}
static inline bool
i915_gem_object_is_tiled(const struct drm_i915_gem_object *obj)
{
return i915_gem_object_get_tiling(obj) != I915_TILING_NONE;
}
static inline unsigned int
i915_gem_object_get_stride(const struct drm_i915_gem_object *obj)
{
return obj->tiling_and_stride & STRIDE_MASK;
}
static inline unsigned int
i915_gem_tile_height(unsigned int tiling)
{
GEM_BUG_ON(!tiling);
return tiling == I915_TILING_Y ? 32 : 8;
}
static inline unsigned int
i915_gem_object_get_tile_height(const struct drm_i915_gem_object *obj)
{
return i915_gem_tile_height(i915_gem_object_get_tiling(obj));
}
static inline unsigned int
i915_gem_object_get_tile_row_size(const struct drm_i915_gem_object *obj)
{
return (i915_gem_object_get_stride(obj) *
i915_gem_object_get_tile_height(obj));
}
int i915_gem_object_set_tiling(struct drm_i915_gem_object *obj,
unsigned int tiling, unsigned int stride);
struct scatterlist *
i915_gem_object_get_sg(struct drm_i915_gem_object *obj,
unsigned int n, unsigned int *offset);
struct page *
i915_gem_object_get_page(struct drm_i915_gem_object *obj,
unsigned int n);
struct page *
i915_gem_object_get_dirty_page(struct drm_i915_gem_object *obj,
unsigned int n);
dma_addr_t
i915_gem_object_get_dma_address_len(struct drm_i915_gem_object *obj,
unsigned long n,
unsigned int *len);
dma_addr_t
i915_gem_object_get_dma_address(struct drm_i915_gem_object *obj,
unsigned long n);
void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
struct sg_table *pages,
unsigned int sg_page_sizes);
int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
enum i915_mm_subclass { /* lockdep subclass for obj->mm.lock/struct_mutex */
I915_MM_NORMAL = 0,
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