diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_internal.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_lmem.c | 22 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_lmem.h | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_mman.c | 12 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_object.c | 38 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_object.h | 14 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_object_types.h | 27 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_pages.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_phys.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 7 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/selftests/huge_gem_object.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/selftests/huge_pages.c | 5 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c | 25 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c | 3 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/i915_gpu_error.c | 2 |
17 files changed, 123 insertions, 52 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_internal.c b/drivers/gpu/drm/i915/gem/i915_gem_internal.c index ce6b664b10aa..13b217f75055 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_internal.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_internal.c @@ -177,8 +177,8 @@ i915_gem_object_create_internal(struct drm_i915_private *i915, return ERR_PTR(-ENOMEM); drm_gem_private_object_init(&i915->drm, &obj->base, size); - i915_gem_object_init(obj, &i915_gem_object_internal_ops, &lock_class, - I915_BO_ALLOC_STRUCT_PAGE); + i915_gem_object_init(obj, &i915_gem_object_internal_ops, &lock_class, 0); + obj->mem_flags |= I915_BO_FLAG_STRUCT_PAGE; /* * Mark the object as volatile, such that the pages are marked as diff --git a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c index d539dffa1554..41d5182cd367 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c @@ -71,6 +71,28 @@ bool i915_gem_object_is_lmem(struct drm_i915_gem_object *obj) mr->type == INTEL_MEMORY_STOLEN_LOCAL); } +/** + * __i915_gem_object_is_lmem - Whether the object is resident in + * lmem while in the fence signaling critical path. + * @obj: The object to check. + * + * This function is intended to be called from within the fence signaling + * path where the fence keeps the object from being migrated. For example + * during gpu reset or similar. + * + * Return: Whether the object is resident in lmem. + */ +bool __i915_gem_object_is_lmem(struct drm_i915_gem_object *obj) +{ + struct intel_memory_region *mr = READ_ONCE(obj->mm.region); + +#ifdef CONFIG_LOCKDEP + GEM_WARN_ON(dma_resv_test_signaled(obj->base.resv, true)); +#endif + return mr && (mr->type == INTEL_MEMORY_LOCAL || + mr->type == INTEL_MEMORY_STOLEN_LOCAL); +} + struct drm_i915_gem_object * i915_gem_object_create_lmem(struct drm_i915_private *i915, resource_size_t size, diff --git a/drivers/gpu/drm/i915/gem/i915_gem_lmem.h b/drivers/gpu/drm/i915/gem/i915_gem_lmem.h index ea76fd11ccb0..27a611deba47 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_lmem.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_lmem.h @@ -21,6 +21,8 @@ i915_gem_object_lmem_io_map(struct drm_i915_gem_object *obj, bool i915_gem_object_is_lmem(struct drm_i915_gem_object *obj); +bool __i915_gem_object_is_lmem(struct drm_i915_gem_object *obj); + struct drm_i915_gem_object * i915_gem_object_create_lmem(struct drm_i915_private *i915, resource_size_t size, diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c index 2fd155742bd2..6497a2dbdab9 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c @@ -684,7 +684,7 @@ __assign_mmap_offset(struct drm_i915_gem_object *obj, if (mmap_type != I915_MMAP_TYPE_GTT && !i915_gem_object_has_struct_page(obj) && - !i915_gem_object_type_has(obj, I915_GEM_OBJECT_HAS_IOMEM)) + !i915_gem_object_has_iomem(obj)) return -ENODEV; mmo = mmap_offset_attach(obj, mmap_type, file); @@ -708,7 +708,12 @@ __assign_mmap_offset_handle(struct drm_file *file, if (!obj) return -ENOENT; + err = i915_gem_object_lock_interruptible(obj, NULL); + if (err) + goto out_put; err = __assign_mmap_offset(obj, mmap_type, offset, file); + i915_gem_object_unlock(obj); +out_put: i915_gem_object_put(obj); return err; } @@ -932,10 +937,7 @@ int i915_gem_mmap(struct file *filp, struct vm_area_struct *vma) return PTR_ERR(anon); } - vma->vm_flags |= VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; - - if (i915_gem_object_has_iomem(obj)) - vma->vm_flags |= VM_IO; + vma->vm_flags |= VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | VM_IO; /* * We keep the ref on mmo->obj, not vm_file, but we require diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c index cf18c430d51f..07e8ff9a8aae 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c @@ -475,6 +475,44 @@ bool i915_gem_object_migratable(struct drm_i915_gem_object *obj) return obj->mm.n_placements > 1; } +/** + * i915_gem_object_has_struct_page - Whether the object is page-backed + * @obj: The object to query. + * + * This function should only be called while the object is locked or pinned, + * otherwise the page backing may change under the caller. + * + * Return: True if page-backed, false otherwise. + */ +bool i915_gem_object_has_struct_page(const struct drm_i915_gem_object *obj) +{ +#ifdef CONFIG_LOCKDEP + if (IS_DGFX(to_i915(obj->base.dev)) && + i915_gem_object_evictable((void __force *)obj)) + assert_object_held_shared(obj); +#endif + return obj->mem_flags & I915_BO_FLAG_STRUCT_PAGE; +} + +/** + * i915_gem_object_has_iomem - Whether the object is iomem-backed + * @obj: The object to query. + * + * This function should only be called while the object is locked or pinned, + * otherwise the iomem backing may change under the caller. + * + * Return: True if iomem-backed, false otherwise. + */ +bool i915_gem_object_has_iomem(const struct drm_i915_gem_object *obj) +{ +#ifdef CONFIG_LOCKDEP + if (IS_DGFX(to_i915(obj->base.dev)) && + i915_gem_object_evictable((void __force *)obj)) + assert_object_held_shared(obj); +#endif + return obj->mem_flags & I915_BO_FLAG_IOMEM; +} + void i915_gem_init__objects(struct drm_i915_private *i915) { INIT_WORK(&i915->mm.free_work, __i915_gem_free_work); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h b/drivers/gpu/drm/i915/gem/i915_gem_object.h index 7bf4dd46d8d2..ea3224a480c4 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h @@ -148,7 +148,7 @@ i915_gem_object_put(struct drm_i915_gem_object *obj) /* * If more than one potential simultaneous locker, assert held. */ -static inline void assert_object_held_shared(struct drm_i915_gem_object *obj) +static inline void assert_object_held_shared(const struct drm_i915_gem_object *obj) { /* * Note mm list lookup is protected by @@ -266,17 +266,9 @@ i915_gem_object_type_has(const struct drm_i915_gem_object *obj, return obj->ops->flags & flags; } -static inline bool -i915_gem_object_has_struct_page(const struct drm_i915_gem_object *obj) -{ - return obj->flags & I915_BO_ALLOC_STRUCT_PAGE; -} +bool i915_gem_object_has_struct_page(const struct drm_i915_gem_object *obj); -static inline bool -i915_gem_object_has_iomem(const struct drm_i915_gem_object *obj) -{ - return i915_gem_object_type_has(obj, I915_GEM_OBJECT_HAS_IOMEM); -} +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) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h index 3a2d9ecf8e03..441f913c87e6 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h @@ -33,10 +33,9 @@ struct i915_lut_handle { struct drm_i915_gem_object_ops { unsigned int flags; -#define I915_GEM_OBJECT_HAS_IOMEM BIT(1) -#define I915_GEM_OBJECT_IS_SHRINKABLE BIT(2) -#define I915_GEM_OBJECT_IS_PROXY BIT(3) -#define I915_GEM_OBJECT_NO_MMAP BIT(4) +#define I915_GEM_OBJECT_IS_SHRINKABLE BIT(1) +#define I915_GEM_OBJECT_IS_PROXY BIT(2) +#define I915_GEM_OBJECT_NO_MMAP BIT(3) /* Interface between the GEM object and its backing storage. * get_pages() is called once prior to the use of the associated set @@ -201,17 +200,25 @@ struct drm_i915_gem_object { unsigned long flags; #define I915_BO_ALLOC_CONTIGUOUS BIT(0) #define I915_BO_ALLOC_VOLATILE BIT(1) -#define I915_BO_ALLOC_STRUCT_PAGE BIT(2) -#define I915_BO_ALLOC_CPU_CLEAR BIT(3) -#define I915_BO_ALLOC_USER BIT(4) +#define I915_BO_ALLOC_CPU_CLEAR BIT(2) +#define I915_BO_ALLOC_USER BIT(3) #define I915_BO_ALLOC_FLAGS (I915_BO_ALLOC_CONTIGUOUS | \ I915_BO_ALLOC_VOLATILE | \ - I915_BO_ALLOC_STRUCT_PAGE | \ I915_BO_ALLOC_CPU_CLEAR | \ I915_BO_ALLOC_USER) -#define I915_BO_READONLY BIT(5) -#define I915_TILING_QUIRK_BIT 6 /* unknown swizzling; do not release! */ +#define I915_BO_READONLY BIT(4) +#define I915_TILING_QUIRK_BIT 5 /* unknown swizzling; do not release! */ + /** + * @mem_flags - Mutable placement-related flags + * + * These are flags that indicate specifics of the memory region + * the object is currently in. As such they are only stable + * either under the object lock or if the object is pinned. + */ + unsigned int mem_flags; +#define I915_BO_FLAG_STRUCT_PAGE BIT(0) /* Object backed by struct pages */ +#define I915_BO_FLAG_IOMEM BIT(1) /* Object backed by IO memory */ /* * Is the object to be mapped as read-only to the GPU * Only honoured if hardware has relevant pte bit diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pages.c b/drivers/gpu/drm/i915/gem/i915_gem_pages.c index 086005c1c7ea..f2f850e31b8e 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_pages.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_pages.c @@ -351,7 +351,7 @@ void *i915_gem_object_pin_map(struct drm_i915_gem_object *obj, int err; if (!i915_gem_object_has_struct_page(obj) && - !i915_gem_object_type_has(obj, I915_GEM_OBJECT_HAS_IOMEM)) + !i915_gem_object_has_iomem(obj)) return ERR_PTR(-ENXIO); assert_object_held(obj); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_phys.c b/drivers/gpu/drm/i915/gem/i915_gem_phys.c index be72ad0634ba..7986612f48fa 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_phys.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_phys.c @@ -76,7 +76,7 @@ static int i915_gem_object_get_pages_phys(struct drm_i915_gem_object *obj) intel_gt_chipset_flush(&to_i915(obj->base.dev)->gt); /* We're no longer struct page backed */ - obj->flags &= ~I915_BO_ALLOC_STRUCT_PAGE; + obj->mem_flags &= ~I915_BO_FLAG_STRUCT_PAGE; __i915_gem_object_set_pages(obj, st, sg->length); return 0; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c index 5d16c4462fda..7aa1c95c7b7d 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c @@ -444,7 +444,7 @@ shmem_pread(struct drm_i915_gem_object *obj, static void shmem_release(struct drm_i915_gem_object *obj) { - if (obj->flags & I915_BO_ALLOC_STRUCT_PAGE) + if (i915_gem_object_has_struct_page(obj)) i915_gem_object_release_memory_region(obj); fput(obj->base.filp); @@ -513,9 +513,8 @@ static int shmem_object_init(struct intel_memory_region *mem, mapping_set_gfp_mask(mapping, mask); GEM_BUG_ON(!(mapping_gfp_mask(mapping) & __GFP_RECLAIM)); - i915_gem_object_init(obj, &i915_gem_shmem_ops, &lock_class, - I915_BO_ALLOC_STRUCT_PAGE); - + i915_gem_object_init(obj, &i915_gem_shmem_ops, &lock_class, 0); + obj->mem_flags |= I915_BO_FLAG_STRUCT_PAGE; obj->write_domain = I915_GEM_DOMAIN_CPU; obj->read_domains = I915_GEM_DOMAIN_CPU; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c index cf5540c1537b..e41bb9d6a491 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c @@ -732,7 +732,6 @@ static u64 i915_ttm_mmap_offset(struct drm_i915_gem_object *obj) static const struct drm_i915_gem_object_ops i915_gem_ttm_obj_ops = { .name = "i915_gem_object_ttm", - .flags = I915_GEM_OBJECT_HAS_IOMEM, .get_pages = i915_ttm_get_pages, .put_pages = i915_ttm_put_pages, @@ -777,6 +776,7 @@ int __i915_gem_ttm_object_init(struct intel_memory_region *mem, i915_gem_object_init_memory_region(obj, mem); i915_gem_object_make_unshrinkable(obj); obj->read_domains = I915_GEM_DOMAIN_WC | I915_GEM_DOMAIN_GTT; + obj->mem_flags |= I915_BO_FLAG_IOMEM; i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE); INIT_RADIX_TREE(&obj->ttm.get_io_page.radix, GFP_KERNEL | __GFP_NOWARN); mutex_init(&obj->ttm.get_io_page.lock); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c index 4b0acc7eaa27..56edfeff8c02 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c @@ -510,8 +510,8 @@ i915_gem_userptr_ioctl(struct drm_device *dev, return -ENOMEM; drm_gem_private_object_init(dev, &obj->base, args->user_size); - i915_gem_object_init(obj, &i915_gem_userptr_ops, &lock_class, - I915_BO_ALLOC_STRUCT_PAGE); + i915_gem_object_init(obj, &i915_gem_userptr_ops, &lock_class, 0); + obj->mem_flags = I915_BO_FLAG_STRUCT_PAGE; obj->read_domains = I915_GEM_DOMAIN_CPU; obj->write_domain = I915_GEM_DOMAIN_CPU; i915_gem_object_set_cache_coherency(obj, I915_CACHE_LLC); diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_gem_object.c b/drivers/gpu/drm/i915/gem/selftests/huge_gem_object.c index 0c8ecfdf5405..f963b8e1e37b 100644 --- a/drivers/gpu/drm/i915/gem/selftests/huge_gem_object.c +++ b/drivers/gpu/drm/i915/gem/selftests/huge_gem_object.c @@ -114,8 +114,8 @@ huge_gem_object(struct drm_i915_private *i915, return ERR_PTR(-ENOMEM); drm_gem_private_object_init(&i915->drm, &obj->base, dma_size); - i915_gem_object_init(obj, &huge_ops, &lock_class, - I915_BO_ALLOC_STRUCT_PAGE); + i915_gem_object_init(obj, &huge_ops, &lock_class, 0); + obj->mem_flags |= I915_BO_FLAG_STRUCT_PAGE; obj->read_domains = I915_GEM_DOMAIN_CPU; obj->write_domain = I915_GEM_DOMAIN_CPU; diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c index dadd485bc52f..ccc67ed1a84b 100644 --- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c +++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c @@ -167,9 +167,8 @@ huge_pages_object(struct drm_i915_private *i915, return ERR_PTR(-ENOMEM); drm_gem_private_object_init(&i915->drm, &obj->base, size); - i915_gem_object_init(obj, &huge_page_ops, &lock_class, - I915_BO_ALLOC_STRUCT_PAGE); - + i915_gem_object_init(obj, &huge_page_ops, &lock_class, 0); + obj->mem_flags |= I915_BO_FLAG_STRUCT_PAGE; i915_gem_object_set_volatile(obj); obj->write_domain = I915_GEM_DOMAIN_CPU; diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c index 44b5de06ce64..607b7d2d4c29 100644 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c @@ -831,16 +831,19 @@ static int wc_check(struct drm_i915_gem_object *obj) static bool can_mmap(struct drm_i915_gem_object *obj, enum i915_mmap_type type) { + bool no_map; + if (type == I915_MMAP_TYPE_GTT && !i915_ggtt_has_aperture(&to_i915(obj->base.dev)->ggtt)) return false; - if (type != I915_MMAP_TYPE_GTT && - !i915_gem_object_has_struct_page(obj) && - !i915_gem_object_type_has(obj, I915_GEM_OBJECT_HAS_IOMEM)) - return false; + i915_gem_object_lock(obj, NULL); + no_map = (type != I915_MMAP_TYPE_GTT && + !i915_gem_object_has_struct_page(obj) && + !i915_gem_object_has_iomem(obj)); + i915_gem_object_unlock(obj); - return true; + return !no_map; } static void object_set_placements(struct drm_i915_gem_object *obj, @@ -988,10 +991,16 @@ static const char *repr_mmap_type(enum i915_mmap_type type) } } -static bool can_access(const struct drm_i915_gem_object *obj) +static bool can_access(struct drm_i915_gem_object *obj) { - return i915_gem_object_has_struct_page(obj) || - i915_gem_object_type_has(obj, I915_GEM_OBJECT_HAS_IOMEM); + bool access; + + i915_gem_object_lock(obj, NULL); + access = i915_gem_object_has_struct_page(obj) || + i915_gem_object_has_iomem(obj); + i915_gem_object_unlock(obj); + + return access; } static int __igt_mmap_access(struct drm_i915_private *i915, diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c index 3a6ce87f8b52..d43d8dae0f69 100644 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c @@ -25,13 +25,14 @@ static int mock_phys_object(void *arg) goto out; } + i915_gem_object_lock(obj, NULL); if (!i915_gem_object_has_struct_page(obj)) { + i915_gem_object_unlock(obj); err = -EINVAL; pr_err("shmem has no struct page\n"); goto out_obj; } - i915_gem_object_lock(obj, NULL); err = i915_gem_object_attach_phys(obj, PAGE_SIZE); i915_gem_object_unlock(obj); if (err) { diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index cb182c6d265a..a2c58b54a592 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -1039,7 +1039,7 @@ i915_vma_coredump_create(const struct intel_gt *gt, if (ret) break; } - } else if (i915_gem_object_is_lmem(vma->obj)) { + } else if (__i915_gem_object_is_lmem(vma->obj)) { struct intel_memory_region *mem = vma->obj->mm.region; dma_addr_t dma; |