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drm/i915/gem: Distinguish each object type 

Separate each object class into a separate lock type to avoid lockdep
cross-contamination between paths (i.e. userptr!).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191022144501.26486-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-10-22 15:45:01 +01:00
parent a201b00e52
commit 7867d70995
12 changed files with 28 additions and 15 deletions
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3
drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
View File

@ -256,6 +256,7 @@ static const struct drm_i915_gem_object_ops i915_gem_object_dmabuf_ops = {
struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
struct dma_buf *dma_buf)
{
static struct lock_class_key lock_class;
struct dma_buf_attachment *attach;
struct drm_i915_gem_object *obj;
int ret;
@ -287,7 +288,7 @@ struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
}
drm_gem_private_object_init(dev, &obj->base, dma_buf->size);
i915_gem_object_init(obj, &i915_gem_object_dmabuf_ops);
i915_gem_object_init(obj, &i915_gem_object_dmabuf_ops, &lock_class);
obj->base.import_attach = attach;
obj->base.resv = dma_buf->resv;

3
drivers/gpu/drm/i915/gem/i915_gem_internal.c
View File

@ -164,6 +164,7 @@ struct drm_i915_gem_object *
i915_gem_object_create_internal(struct drm_i915_private *i915,
phys_addr_t size)
{
static struct lock_class_key lock_class;
struct drm_i915_gem_object *obj;
unsigned int cache_level;
@ -178,7 +179,7 @@ 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);
i915_gem_object_init(obj, &i915_gem_object_internal_ops, &lock_class);
/*
* Mark the object as volatile, such that the pages are marked as

5
drivers/gpu/drm/i915/gem/i915_gem_object.c
View File

@ -47,9 +47,10 @@ 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)
const struct drm_i915_gem_object_ops *ops,
struct lock_class_key *key)
{
mutex_init(&obj->mm.lock);
__mutex_init(&obj->mm.lock, "obj->mm.lock", key);
spin_lock_init(&obj->vma.lock);
INIT_LIST_HEAD(&obj->vma.list);

3
drivers/gpu/drm/i915/gem/i915_gem_object.h
View File

@ -23,7 +23,8 @@ 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);
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);

3
drivers/gpu/drm/i915/gem/i915_gem_shmem.c
View File

@ -465,6 +465,7 @@ create_shmem(struct intel_memory_region *mem,
resource_size_t size,
unsigned int flags)
{
static struct lock_class_key lock_class;
struct drm_i915_private *i915 = mem->i915;
struct drm_i915_gem_object *obj;
struct address_space *mapping;
@ -491,7 +492,7 @@ create_shmem(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);
i915_gem_object_init(obj, &i915_gem_shmem_ops, &lock_class);
obj->write_domain = I915_GEM_DOMAIN_CPU;
obj->read_domains = I915_GEM_DOMAIN_CPU;

3
drivers/gpu/drm/i915/gem/i915_gem_stolen.c
View File

@ -556,6 +556,7 @@ __i915_gem_object_create_stolen(struct drm_i915_private *dev_priv,
struct drm_mm_node *stolen,
struct intel_memory_region *mem)
{
static struct lock_class_key lock_class;
struct drm_i915_gem_object *obj;
unsigned int cache_level;
int err = -ENOMEM;
@ -565,7 +566,7 @@ __i915_gem_object_create_stolen(struct drm_i915_private *dev_priv,
goto err;
drm_gem_private_object_init(&dev_priv->drm, &obj->base, stolen->size);
i915_gem_object_init(obj, &i915_gem_object_stolen_ops);
i915_gem_object_init(obj, &i915_gem_object_stolen_ops, &lock_class);
obj->stolen = stolen;
obj->read_domains = I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT;

3
drivers/gpu/drm/i915/gem/i915_gem_userptr.c
View File

@ -725,6 +725,7 @@ i915_gem_userptr_ioctl(struct drm_device *dev,
void *data,
struct drm_file *file)
{
static struct lock_class_key lock_class;
struct drm_i915_private *dev_priv = to_i915(dev);
struct drm_i915_gem_userptr *args = data;
struct drm_i915_gem_object *obj;
@ -769,7 +770,7 @@ 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);
i915_gem_object_init(obj, &i915_gem_userptr_ops, &lock_class);
obj->read_domains = I915_GEM_DOMAIN_CPU;
obj->write_domain = I915_GEM_DOMAIN_CPU;
i915_gem_object_set_cache_coherency(obj, I915_CACHE_LLC);

3
drivers/gpu/drm/i915/gem/selftests/huge_gem_object.c
View File

@ -96,6 +96,7 @@ huge_gem_object(struct drm_i915_private *i915,
phys_addr_t phys_size,
dma_addr_t dma_size)
{
static struct lock_class_key lock_class;
struct drm_i915_gem_object *obj;
unsigned int cache_level;
@ -111,7 +112,7 @@ 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);
i915_gem_object_init(obj, &huge_ops, &lock_class);
obj->read_domains = I915_GEM_DOMAIN_CPU;
obj->write_domain = I915_GEM_DOMAIN_CPU;

8
drivers/gpu/drm/i915/gem/selftests/huge_pages.c
View File

@ -149,6 +149,7 @@ huge_pages_object(struct drm_i915_private *i915,
u64 size,
unsigned int page_mask)
{
static struct lock_class_key lock_class;
struct drm_i915_gem_object *obj;
GEM_BUG_ON(!size);
@ -165,7 +166,7 @@ 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);
i915_gem_object_init(obj, &huge_page_ops, &lock_class);
i915_gem_object_set_volatile(obj);
@ -295,6 +296,7 @@ static const struct drm_i915_gem_object_ops fake_ops_single = {
static struct drm_i915_gem_object *
fake_huge_pages_object(struct drm_i915_private *i915, u64 size, bool single)
{
static struct lock_class_key lock_class;
struct drm_i915_gem_object *obj;
GEM_BUG_ON(!size);
@ -313,9 +315,9 @@ fake_huge_pages_object(struct drm_i915_private *i915, u64 size, bool single)
drm_gem_private_object_init(&i915->drm, &obj->base, size);
if (single)
i915_gem_object_init(obj, &fake_ops_single);
i915_gem_object_init(obj, &fake_ops_single, &lock_class);
else
i915_gem_object_init(obj, &fake_ops);
i915_gem_object_init(obj, &fake_ops, &lock_class);
i915_gem_object_set_volatile(obj);

3
drivers/gpu/drm/i915/gvt/dmabuf.c
View File

@ -152,6 +152,7 @@ static const struct drm_i915_gem_object_ops intel_vgpu_gem_ops = {
static struct drm_i915_gem_object *vgpu_create_gem(struct drm_device *dev,
struct intel_vgpu_fb_info *info)
{
static struct lock_class_key lock_class;
struct drm_i915_private *dev_priv = to_i915(dev);
struct drm_i915_gem_object *obj;
@ -161,7 +162,7 @@ static struct drm_i915_gem_object *vgpu_create_gem(struct drm_device *dev,
drm_gem_private_object_init(dev, &obj->base,
roundup(info->size, PAGE_SIZE));
i915_gem_object_init(obj, &intel_vgpu_gem_ops);
i915_gem_object_init(obj, &intel_vgpu_gem_ops, &lock_class);
obj->read_domains = I915_GEM_DOMAIN_GTT;
obj->write_domain = 0;

3
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
View File

@ -104,6 +104,7 @@ static const struct drm_i915_gem_object_ops fake_ops = {
static struct drm_i915_gem_object *
fake_dma_object(struct drm_i915_private *i915, u64 size)
{
static struct lock_class_key lock_class;
struct drm_i915_gem_object *obj;
GEM_BUG_ON(!size);
@ -117,7 +118,7 @@ fake_dma_object(struct drm_i915_private *i915, u64 size)
goto err;
drm_gem_private_object_init(&i915->drm, &obj->base, size);
i915_gem_object_init(obj, &fake_ops);
i915_gem_object_init(obj, &fake_ops, &lock_class);
i915_gem_object_set_volatile(obj);

3
drivers/gpu/drm/i915/selftests/mock_region.c
View File

@ -19,6 +19,7 @@ mock_object_create(struct intel_memory_region *mem,
resource_size_t size,
unsigned int flags)
{
static struct lock_class_key lock_class;
struct drm_i915_private *i915 = mem->i915;
struct drm_i915_gem_object *obj;
@ -30,7 +31,7 @@ mock_object_create(struct intel_memory_region *mem,
return ERR_PTR(-ENOMEM);
drm_gem_private_object_init(&i915->drm, &obj->base, size);
i915_gem_object_init(obj, &mock_region_obj_ops);
i915_gem_object_init(obj, &mock_region_obj_ops, &lock_class);
obj->read_domains = I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT;