/*
* 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 "intel_memory_region.h"
#include "i915_gem_object_types.h"
#include "i915_gem_gtt.h"
#include "i915_gem_ww.h"
#include "i915_vma_types.h"
enum intel_region_id;
#define obj_to_i915(obj__) to_i915((obj__)->base.dev)
static inline bool i915_gem_object_size_2big(u64 size)
{
struct drm_i915_gem_object *obj;
if (overflows_type(size, obj->base.size))
return true;
return false;
}
unsigned int i915_gem_get_pat_index(struct drm_i915_private *i915,
enum i915_cache_level level);
bool i915_gem_object_has_cache_level(const struct drm_i915_gem_object *obj,
enum i915_cache_level lvl);
void i915_gem_init__objects(struct drm_i915_private *i915);
void i915_objects_module_exit(void);
int i915_objects_module_init(void);
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,
unsigned alloc_flags);
void __i915_gem_object_fini(struct drm_i915_gem_object *obj);
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);
struct drm_i915_gem_object *
__i915_gem_object_create_user(struct drm_i915_private *i915, u64 size,
struct intel_memory_region **placements,
unsigned int n_placements);
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_pwrite_phys(struct drm_i915_gem_object *obj,
const struct drm_i915_gem_pwrite *args);
int i915_gem_object_pread_phys(struct drm_i915_gem_object *obj,
const struct drm_i915_gem_pread *args);
int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj, int align);
void i915_gem_object_put_pages_shmem(struct drm_i915_gem_object *obj,
struct sg_table *pages);
void i915_gem_object_put_pages_phys(struct drm_i915_gem_object *obj,
struct sg_table *pages);
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);
/**
* i915_gem_object_lookup_rcu - look up a temporary GEM object from its handle
* @file: 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_get_rcu(struct drm_i915_gem_object *obj)
{
if (obj && !kref_get_unless_zero(&obj->base.refcount))
obj = NULL;
return obj;
}
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);
obj = i915_gem_object_get_rcu(obj);
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)
/*
* If more than one potential simultaneous locker, assert held.
*/
static inline void assert_object_held_shared(const struct drm_i915_gem_object *obj)
{
/*
* Note mm list lookup is protected by
* kref_get_unless_zero().
*/
if (IS_ENABLED(CONFIG_LOCKDEP) &&
kref_read(&obj->base.refcount) > 0)
assert_object_held(obj);
}
static inline int __i915_gem_object_lock(struct drm_i915_gem_object *obj,
struct i915_gem_ww_ctx *ww,
bool intr)
{
int ret;
if (intr)
ret = dma_resv_lock_interruptible(obj->base.resv, ww ? &ww->ctx : NULL);
else
ret = dma_resv_lock(obj->base.resv, ww ? &ww->ctx : NULL);
if (!ret && ww) {
i915_gem_object_get(obj);
list_add_tail(&obj->obj_link, &ww->obj_list);
}
if (ret == -EALREADY)
ret = 0;
if (ret == -EDEADLK) {
i915_gem_object_get(obj);
ww->contended = obj;
}
return ret;
}
static inline int i915_gem_object_lock(struct drm_i915_gem_object *obj,
struct i915_gem_ww_ctx *ww)
{
return __i915_gem_object_lock(obj, ww, ww && ww->intr);
}
static inline int i915_gem_object_lock_interruptible(struct drm_i915_gem_object *obj,
struct i915_gem_ww_ctx *ww)
{
WARN_ON(ww && !ww->intr);
return __i915_gem_object_lock(obj, ww, true);
}
static inline bool i915_gem_object_trylock(struct drm_i915_gem_object *obj,
struct i915_gem_ww_ctx *ww)
{
if (!ww)
return dma_resv_trylock(obj->base.resv);
else
return ww_mutex_trylock(&obj->base.resv->lock, &ww->ctx);
}
static inline void i915_gem_object_unlock(struct drm_i915_gem_object *obj)
{
if (obj->ops->adjust_lru)
obj->ops->adjust_lru(obj);
dma_resv_unlock(obj->base.resv);
}
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_has_tiling_quirk(struct drm_i915_gem_object *obj)
{
return test_bit(I915_TILING_QUIRK_BIT, &obj->flags);
}
static inline void
i915_gem_object_set_tiling_quirk(struct drm_i915_gem_object *obj)
{
set_bit(I915_TILING_QUIRK_BIT, &obj->flags);
}
static inline void
i915_gem_object_clear_tiling_quirk(struct drm_i915_gem_object *obj)
{
clear_bit(I915_TILING_QUIRK_BIT, &obj->flags);
}
static inline bool
i915_gem_object_is_protected(const struct drm_i915_gem_object *obj)
{
return obj->flags & I915_BO_PROTECTED;
}
static inline bool
i915_gem_object_type_has(const struct drm_i915_gem_object *obj,
unsigned long flags)
{
return obj->ops->flags & flags;
}
bool i915_gem_object_has_struct_page(const struct drm_i915_gem_object *obj);
bool i915_gem_object_has_iomem(const struct drm_i915_gem_object *obj);
static inline bool
i915_gem_object_is_shrinkable(const struct drm_i915_gem_object *obj)
{
/* TODO: make DPT shrinkable when it has no bound vmas */
return i915_gem_object_type_has(obj, I915_GEM_OBJECT_IS_SHRINKABLE) &&
!obj->is_dpt;
}
static inline bool
i915_gem_object_has_self_managed_shrink_list(const struct drm_i915_gem_object *obj)
{
return i915_gem_object_type_has(obj, I915_GEM_OBJECT_SELF_MANAGED_SHRINK_LIST);
}
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_mmap(const struct drm_i915_gem_object *obj)
{
return i915_gem_object_type_has(obj, I915_GEM_OBJECT_NO_MMAP);
}
static inline bool
i915_gem_object_is_framebuffer(const struct drm_i915_gem_object *obj)
{
return READ_ONCE(obj->frontbuffer) || obj->is_dpt;
}
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);
/**
* __i915_gem_object_page_iter_get_sg - helper to find the target scatterlist
* pointer and the target page position using pgoff_t n input argument and
* i915_gem_object_page_iter
* @obj: i915 GEM buffer object
* @iter: i915 GEM buffer object page iterator
* @n: page offset
* @offset: searched physical offset,
* it will be used for returning physical page offset value
*
* Context: Takes and releases the mutex lock of the i915_gem_object_page_iter.
* Takes and releases the RCU lock to search the radix_tree of
* i915_gem_object_page_iter.
*
* Returns:
* The target scatterlist pointer and the target page position.
*
* Recommended to use wrapper macro: i915_gem_object_page_iter_get_sg()
*/
struct scatterlist *
__i915_gem_object_page_iter_get_sg(struct drm_i915_gem_object *obj,
struct i915_gem_object_page_iter *iter,
pgoff_t n,
unsigned int *offset);
/**
* i915_gem_object_page_iter_get_sg - wrapper macro for
* __i915_gem_object_page_iter_get_sg()
* @obj: i915 GEM buffer object
* @it: i915 GEM buffer object page iterator
* @n: page offset
* @offset: searched physical offset,
* it will be used for returning physical page offset value
*
* Context: Takes and releases the mutex lock of the i915_gem_object_page_iter.
* Takes and releases the RCU lock to search the radix_tree of
* i915_gem_object_page_iter.
*
* Returns:
* The target scatterlist pointer and the target page position.
*
* In order to avoid the truncation of the input parameter, it checks the page
* offset n's type from the input parameter before calling
* __i915_gem_object_page_iter_get_sg().
*/
#define i915_gem_object_page_iter_get_sg(obj, it, n, offset) ({ \
static_assert(castable_to_type(n, pgoff_t)); \
__i915_gem_object_page_iter_get_sg(obj, it, n, offset); \
})
/**
* __i915_gem_object_get_sg - helper to find the target scatterlist
* pointer and the target page position using pgoff_t n input argument and
* drm_i915_gem_object. It uses an internal shmem scatterlist lookup function.
* @obj: i915 GEM buffer object
* @n: page offset
* @offset: searched physical offset,
* it will be used for returning physical page offset value
*
* It uses drm_i915_gem_object's internal shmem scatterlist lookup function as
* i915_gem_object_page_iter and calls __i915_gem_object_page_iter_get_sg().
*
* Returns:
* The target scatterlist pointer and the target page position.
*
* Recommended to use wrapper macro: i915_gem_object_get_sg()
* See also __i915_gem_object_page_iter_get_sg()
*/
static inline struct scatterlist *
__i915_gem_object_get_sg(struct drm_i915_gem_object *obj, pgoff_t n,
unsigned int *offset)
{
return __i915_gem_object_page_iter_get_sg(obj, &obj->mm.get_page, n, offset);
}
/**
* i915_gem_object_get_sg - wrapper macro for __i915_gem_object_get_sg()
* @obj: i915 GEM buffer object
* @n: page offset
* @offset: searched physical offset,
* it will be used for returning physical page offset value
*
* Returns:
* The target scatterlist pointer and the target page position.
*
* In order to avoid the truncation of the input parameter, it checks the page
* offset n's type from the input parameter before calling
* __i915_gem_object_get_sg().
* See also __i915_gem_object_page_iter_get_sg()
*/
#define i915_gem_object_get_sg(obj, n, offset) ({ \
static_assert(castable_to_type(n, pgoff_t)); \
__i915_gem_object_get_sg(obj, n, offset); \
})
/**
* __i915_gem_object_get_sg_dma - helper to find the target scatterlist
* pointer and the target page position using pgoff_t n input argument and
* drm_i915_gem_object. It uses an internal DMA mapped scatterlist lookup function
* @obj: i915 GEM buffer object
* @n: page offset
* @offset: searched physical offset,
* it will be used for returning physical page offset value
*
* It uses drm_i915_gem_object's internal DMA mapped scatterlist lookup function
* as i915_gem_object_page_iter and calls __i915_gem_object_page_iter_get_sg().
*
* Returns:
* The target scatterlist pointer and the target page position.
*
* Recommended to use wrapper macro: i915_gem_object_get_sg_dma()
* See also __i915_gem_object_page_iter_get_sg()
*/
static inline struct scatterlist *
__i915_gem_object_get_sg_dma(struct drm_i915_gem_object *obj, pgoff_t n,
unsigned int *offset)
{
return __i915_gem_object_page_iter_get_sg(obj, &obj->mm.get_dma_page, n, offset);
}
/**
* i915_gem_object_get_sg_dma - wrapper macro for __i915_gem_object_get_sg_dma()
* @obj: i915 GEM buffer object
* @n: page offset
* @offset: searched physical offset,
* it will be used for returning physical page offset value
*
* Returns:
* The target scatterlist pointer and the target page position.
*
* In order to avoid the truncation of the input parameter, it checks the page
* offset n's type from the input parameter before calling
* __i915_gem_object_get_sg_dma().
* See also __i915_gem_object_page_iter_get_sg()
*/
#define i915_gem_object_get_sg_dma(obj, n, offset) ({ \
static_assert(castable_to_type(n, pgoff_t)); \
__i915_gem_object_get_sg_dma(obj, n, offset); \
})
/**
* __i915_gem_object_get_page - helper to find the target page with a page offset
* @obj: i915 GEM buffer object
* @n: page offset
*
* It uses drm_i915_gem_object's internal shmem scatterlist lookup function as
* i915_gem_object_page_iter and calls __i915_gem_object_page_iter_get_sg()
* internally.
*
* Returns:
* The target page pointer.
*
* Recommended to use wrapper macro: i915_gem_object_get_page()
* See also __i915_gem_object_page_iter_get_sg()
*/
struct page *
__i915_gem_object_get_page(struct drm_i915_gem_object *obj, pgoff_t n);
/**
* i915_gem_object_get_page - wrapper macro for __i915_gem_object_get_page
* @obj: i915 GEM buffer object
* @n: page offset
*
* Returns:
* The target page pointer.
*
* In order to avoid the truncation of the input parameter, it checks the page
* offset n's type from the input parameter before calling
* __i915_gem_object_get_page().
* See also __i915_gem_object_page_iter_get_sg()
*/
#define i915_gem_object_get_page(obj, n) ({ \
static_assert(castable_to_type(n, pgoff_t)); \
__i915_gem_object_get_page(obj, n); \
})
/**
* __i915_gem_object_get_dirty_page - helper to find the target page with a page
* offset
* @obj: i915 GEM buffer object
* @n: page offset
*
* It works like i915_gem_object_get_page(), but it marks the returned page dirty.
*
* Returns:
* The target page pointer.
*
* Recommended to use wrapper macro: i915_gem_object_get_dirty_page()
* See also __i915_gem_object_page_iter_get_sg() and __i915_gem_object_get_page()
*/
struct page *
__i915_gem_object_get_dirty_page(struct drm_i915_gem_object *obj, pgoff_t n);
/**
* i915_gem_object_get_dirty_page - wrapper macro for __i915_gem_object_get_dirty_page
* @obj: i915 GEM buffer object
* @n: page offset
*
* Returns:
* The target page pointer.
*
* In order to avoid the truncation of the input parameter, it checks the page
* offset n's type from the input parameter before calling
* __i915_gem_object_get_dirty_page().
* See also __i915_gem_object_page_iter_get_sg() and __i915_gem_object_get_page()
*/
#define i915_gem_object_get_dirty_page(obj, n) ({ \
static_assert(castable_to_type(n, pgoff_t)); \
__i915_gem_object_get_dirty_page(obj, n); \
})
/**
* __i915_gem_object_get_dma_address_len - helper to get bus addresses of
* targeted DMA mapped scatterlist from i915 GEM buffer object and it's length
* @obj: i915 GEM buffer object
* @n: page offset
* @len: DMA mapped scatterlist's DMA bus addresses length to return
*
* Returns:
* Bus addresses of targeted DMA mapped scatterlist
*
* Recommended to use wrapper macro: i915_gem_object_get_dma_address_len()
* See also __i915_gem_object_page_iter_get_sg() and __i915_gem_object_get_sg_dma()
*/
dma_addr_t
__i915_gem_object_get_dma_address_len(struct drm_i915_gem_object *obj, pgoff_t n,
unsigned int *len);
/**
* i915_gem_object_get_dma_address_len - wrapper macro for
* __i915_gem_object_get_dma_address_len
* @obj: i915 GEM buffer object
* @n: page offset
* @len: DMA mapped scatterlist's DMA bus addresses length to return
*
* Returns:
* Bus addresses of targeted DMA mapped scatterlist
*
* In order to avoid the truncation of the input parameter, it checks the page
* offset n's type from the input parameter before calling
* __i915_gem_object_get_dma_address_len().
* See also __i915_gem_object_page_iter_get_sg() and
* __i915_gem_object_get_dma_address_len()
*/
#define i915_gem_object_get_dma_address_len(obj, n, len) ({ \
static_assert(castable_to_type(n, pgoff_t)); \
__i915_gem_object_get_dma_address_len(obj, n, len); \
})
/**
* __i915_gem_object_get_dma_address - helper to get bus addresses of
* targeted DMA mapped scatterlist from i915 GEM buffer object
* @obj: i915 GEM buffer object
* @n: page offset
*
* Returns:
* Bus addresses of targeted DMA mapped scatterlis
*
* Recommended to use wrapper macro: i915_gem_object_get_dma_address()
* See also __i915_gem_object_page_iter_get_sg() and __i915_gem_object_get_sg_dma()
*/
dma_addr_t
__i915_gem_object_get_dma_address(struct drm_i915_gem_object *obj, pgoff_t n);
/**
* i915_gem_object_get_dma_address - wrapper macro for
* __i915_gem_object_get_dma_address
* @obj: i915 GEM buffer object
* @n: page offset
*
* Returns:
* Bus addresses of targeted DMA mapped scatterlist
*
* In order to avoid the truncation of the input parameter, it checks the page
* offset n's type from the input parameter before calling
* __i915_gem_object_get_dma_address().
* See also __i915_gem_object_page_iter_get_sg() and
* __i915_gem_object_get_dma_address()
*/
#define i915_gem_object_get_dma_address(obj, n) ({ \
static_assert(castable_to_type(n, pgoff_t)); \
__i915_gem_object_get_dma_address(obj, n); \
})
void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
struct sg_table *pages);
int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
static inline int __must_check
i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
{
assert_object_held(obj);
if (atomic_inc_not_zero(&obj->mm.pages_pin_count))
return 0;
return __i915_gem_object_get_pages(obj);
}
int i915_gem_object_pin_pages_unlocked(struct drm_i915_gem_object *obj);
static inline bool
i915_gem_object_has_pages(struct drm_i915_gem_object *obj)
{
return !IS_ERR_OR_NULL(READ_ONCE(obj->mm.pages));
}
static inline void
__i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
{
GEM_BUG_ON(!i915_gem_object_has_pages(obj));
atomic_inc(&obj->mm.pages_pin_count);
}
static inline bool
i915_gem_object_has_pinned_pages(struct drm_i915_gem_object *obj)
{
return atomic_read(&obj->mm.pages_pin_count);
}
static inline void
__i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
{
GEM_BUG_ON(!i915_gem_object_has_pages(obj));
GEM_BUG_ON(!i915_gem_object_has_pinned_pages(obj));
atomic_dec(&obj->mm.pages_pin_count);
}
static inline void
i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
{
__i915_gem_object_unpin_pages(obj);
}
int __i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
int i915_gem_object_truncate(struct drm_i915_gem_object *obj);
/**
* i915_gem_object_pin_map - return a contiguous mapping of the entire object
* @obj: the object to map into kernel address space
* @type: the type of mapping, used to select pgprot_t
*
* Calls i915_gem_object_pin_pages() to prevent reaping of the object's
* pages and then returns a contiguous mapping of the backing storage into
* the kernel address space. Based on the @type of mapping, the PTE will be
* set to either WriteBack or WriteCombine (via pgprot_t).
*
* The caller is responsible for calling i915_gem_object_unpin_map() when the
* mapping is no longer required.
*
* Returns the pointer through which to access the mapped object, or an
* ERR_PTR() on error.
*/
void *__must_check i915_gem_object_pin_map(struct drm_i915_gem_object *obj,
enum i915_map_type type);
void *__must_check i915_gem_object_pin_map_unlocked(struct drm_i915_gem_object *obj,
enum i915_map_type type);
void __i915_gem_object_flush_map(struct drm_i915_gem_object *obj,
unsigned long offset,
unsigned long size);
static inline void i915_gem_object_flush_map(struct drm_i915_gem_object *obj)
{
__i915_gem_object_flush_map(obj, 0, obj->base.size);
}
/**
* i915_gem_object_unpin_map - releases an earlier mapping
* @obj: the object to unmap
*
* After pinning the object and mapping its pages, once you are finished
* with your access, call i915_gem_object_unpin_map() to release the pin
* upon the mapping. Once the pin count reaches zero, that mapping may be
* removed.
*/
static inline void i915_gem_object_unpin_map(struct drm_i915_gem_object *obj)
{
i915_gem_object_unpin_pages(obj);
}
void __i915_gem_object_release_map(struct drm_i915_gem_object *obj);
int i915_gem_object_prepare_read(struct drm_i915_gem_object *obj,
unsigned int *needs_clflush);
int i915_gem_object_prepare_write(struct drm_i915_gem_object *obj,
unsigned int *needs_clflush);
#define CLFLUSH_BEFORE BIT(0)
#define CLFLUSH_AFTER BIT(1)
#define CLFLUSH_FLAGS (CLFLUSH_BEFORE | CLFLUSH_AFTER)
static inline void
i915_gem_object_finish_access(struct drm_i915_gem_object *obj)
{
i915_gem_object_unpin_pages(obj);
}
int i915_gem_object_get_moving_fence(struct drm_i915_gem_object *obj,
struct dma_fence **fence);
int i915_gem_object_wait_moving_fence(struct drm_i915_gem_object *obj,
bool intr);
bool i915_gem_object_has_unknown_state(struct drm_i915_gem_object *obj);
void i915_gem_object_set_cache_coherency(struct drm_i915_gem_object *obj,
unsigned int cache_level);
void i915_gem_object_set_pat_index(struct drm_i915_gem_object *obj,
unsigned int pat_index);
bool i915_gem_object_can_bypass_llc(struct drm_i915_gem_object *obj);
void i915_gem_object_flush_if_display(struct drm_i915_gem_object *obj);
void i915_gem_object_flush_if_display_locked(struct drm_i915_gem_object *obj);
bool i915_gem_cpu_write_needs_clflush(struct drm_i915_gem_object *obj);
int __must_check
i915_gem_object_set_to_wc_domain(struct drm_i915_gem_object *obj, bool write);
int __must_check
i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write);
int __must_check
i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
struct i915_vma * __must_check
i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
struct i915_gem_ww_ctx *ww,
u32 alignment,
const struct i915_gtt_view *view,
unsigned int flags);
void i915_gem_object_make_unshrinkable(struct drm_i915_gem_object *obj);
void i915_gem_object_make_shrinkable(struct drm_i915_gem_object *obj);
void __i915_gem_object_make_shrinkable(struct drm_i915_gem_object *obj);
void __i915_gem_object_make_purgeable(struct drm_i915_gem_object *obj);
void i915_gem_object_make_purgeable(struct drm_i915_gem_object *obj);
static inline void __start_cpu_write(struct drm_i915_gem_object *obj)
{
obj->read_domains = I915_GEM_DOMAIN_CPU;
obj->write_domain = I915_GEM_DOMAIN_CPU;
if (i915_gem_cpu_write_needs_clflush(obj))
obj->cache_dirty = true;
}
void i915_gem_fence_wait_priority(struct dma_fence *fence,
const struct i915_sched_attr *attr);
int i915_gem_object_wait(struct drm_i915_gem_object *obj,
unsigned int flags,
long timeout);
int i915_gem_object_wait_priority(struct drm_i915_gem_object *obj,
unsigned int flags,
const struct i915_sched_attr *attr);
int i915_gem_object_read_from_page(struct drm_i915_gem_object *obj, u64 offset, void *dst, int size);
bool i915_gem_object_is_shmem(const struct drm_i915_gem_object *obj);
void __i915_gem_free_object_rcu(struct rcu_head *head);
void __i915_gem_object_pages_fini(struct drm_i915_gem_object *obj);
void __i915_gem_free_object(struct drm_i915_gem_object *obj);
bool i915_gem_object_evictable(struct drm_i915_gem_object *obj);
bool i915_gem_object_migratable(struct drm_i915_gem_object *obj);
int i915_gem_object_migrate(struct drm_i915_gem_object *obj,
struct i915_gem_ww_ctx *ww,
enum intel_region_id id);
int __i915_gem_object_migrate(struct drm_i915_gem_object *obj,
struct i915_gem_ww_ctx *ww,
enum intel_region_id id,
unsigned int flags);
bool i915_gem_object_can_migrate(struct drm_i915_gem_object *obj,
enum intel_region_id id);
int i915_gem_object_wait_migration(struct drm_i915_gem_object *obj,
unsigned int flags);
bool i915_gem_object_placement_possible(struct drm_i915_gem_object *obj,
enum intel_memory_type type);
bool i915_gem_object_needs_ccs_pages(struct drm_i915_gem_object *obj);
int shmem_sg_alloc_table(struct drm_i915_private *i915, struct sg_table *st,
size_t size, struct intel_memory_region *mr,
struct address_space *mapping,
unsigned int max_segment);
void shmem_sg_free_table(struct sg_table *st, struct address_space *mapping,
bool dirty, bool backup);
void __shmem_writeback(size_t size, struct address_space *mapping);
#ifdef CONFIG_MMU_NOTIFIER
static inline bool
i915_gem_object_is_userptr(struct drm_i915_gem_object *obj)
{
return obj->userptr.notifier.mm;
}
int i915_gem_object_userptr_submit_init(struct drm_i915_gem_object *obj);
int i915_gem_object_userptr_submit_done(struct drm_i915_gem_object *obj);
int i915_gem_object_userptr_validate(struct drm_i915_gem_object *obj);
#else
static inline bool i915_gem_object_is_userptr(struct drm_i915_gem_object *obj) { return false; }
static inline int i915_gem_object_userptr_submit_init(struct drm_i915_gem_object *obj) { GEM_BUG_ON(1); return -ENODEV; }
static inline int i915_gem_object_userptr_submit_done(struct drm_i915_gem_object *obj) { GEM_BUG_ON(1); return -ENODEV; }
static inline int i915_gem_object_userptr_validate(struct drm_i915_gem_object *obj) { GEM_BUG_ON(1); return -ENODEV; }
#endif
#endif
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