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drm/msm/gem: Add msm_gem_assert_locked()

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All use of msm_gem_is_locked() is just for WARN_ON()s, so extract out
into an msm_gem_assert_locked() patch.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/496136/
Link: https://lore.kernel.org/r/20220802155152.1727594-15-robdclark@gmail.com
This commit is contained in:
Rob Clark 2022-08-02 08:51:47 -07:00
parent 025d27239a
commit d4d7d3630d
2 changed files with 25 additions and 19 deletions
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36
drivers/gpu/drm/msm/msm_gem.c
View File

@ -97,7 +97,7 @@ static struct page **get_pages(struct drm_gem_object *obj)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
if (!msm_obj->pages) {
struct drm_device *dev = obj->dev;
@ -183,7 +183,7 @@ static struct page **msm_gem_pin_pages_locked(struct drm_gem_object *obj)
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct page **p;
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) {
return ERR_PTR(-EBUSY);
@ -278,7 +278,7 @@ static uint64_t mmap_offset(struct drm_gem_object *obj)
struct drm_device *dev = obj->dev;
int ret;
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
/* Make it mmapable */
ret = drm_gem_create_mmap_offset(obj);
@ -307,7 +307,7 @@ static struct msm_gem_vma *add_vma(struct drm_gem_object *obj,
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct msm_gem_vma *vma;
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
vma = kzalloc(sizeof(*vma), GFP_KERNEL);
if (!vma)
@ -326,7 +326,7 @@ static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj,
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct msm_gem_vma *vma;
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
list_for_each_entry(vma, &msm_obj->vmas, list) {
if (vma->aspace == aspace)
@ -357,7 +357,7 @@ put_iova_spaces(struct drm_gem_object *obj, bool close)
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct msm_gem_vma *vma;
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
list_for_each_entry(vma, &msm_obj->vmas, list) {
if (vma->aspace) {
@ -375,7 +375,7 @@ put_iova_vmas(struct drm_gem_object *obj)
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct msm_gem_vma *vma, *tmp;
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) {
del_vma(vma);
@ -388,7 +388,7 @@ static struct msm_gem_vma *get_vma_locked(struct drm_gem_object *obj,
{
struct msm_gem_vma *vma;
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
vma = lookup_vma(obj, aspace);
@ -428,7 +428,7 @@ int msm_gem_pin_vma_locked(struct drm_gem_object *obj, struct msm_gem_vma *vma)
if (msm_obj->flags & MSM_BO_CACHED_COHERENT)
prot |= IOMMU_CACHE;
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED))
return -EBUSY;
@ -448,7 +448,7 @@ void msm_gem_unpin_locked(struct drm_gem_object *obj)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
msm_obj->pin_count--;
GEM_WARN_ON(msm_obj->pin_count < 0);
@ -469,7 +469,7 @@ static int get_and_pin_iova_range_locked(struct drm_gem_object *obj,
struct msm_gem_vma *vma;
int ret;
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
vma = get_vma_locked(obj, aspace, range_start, range_end);
if (IS_ERR(vma))
@ -630,7 +630,7 @@ static void *get_vaddr(struct drm_gem_object *obj, unsigned madv)
struct msm_gem_object *msm_obj = to_msm_bo(obj);
int ret = 0;
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
if (obj->import_attach)
return ERR_PTR(-ENODEV);
@ -703,7 +703,7 @@ void msm_gem_put_vaddr_locked(struct drm_gem_object *obj)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
GEM_WARN_ON(msm_obj->vmap_count < 1);
msm_obj->vmap_count--;
@ -745,7 +745,7 @@ void msm_gem_purge(struct drm_gem_object *obj)
struct drm_device *dev = obj->dev;
struct msm_gem_object *msm_obj = to_msm_bo(obj);
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
GEM_WARN_ON(!is_purgeable(msm_obj));
/* Get rid of any iommu mapping(s): */
@ -782,7 +782,7 @@ void msm_gem_evict(struct drm_gem_object *obj)
struct drm_device *dev = obj->dev;
struct msm_gem_object *msm_obj = to_msm_bo(obj);
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
GEM_WARN_ON(is_unevictable(msm_obj));
/* Get rid of any iommu mapping(s): */
@ -797,7 +797,7 @@ void msm_gem_vunmap(struct drm_gem_object *obj)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
if (!msm_obj->vaddr || GEM_WARN_ON(!is_vunmapable(msm_obj)))
return;
@ -811,7 +811,7 @@ static void update_lru(struct drm_gem_object *obj)
struct msm_drm_private *priv = obj->dev->dev_private;
struct msm_gem_object *msm_obj = to_msm_bo(obj);
GEM_WARN_ON(!msm_gem_is_locked(&msm_obj->base));
msm_gem_assert_locked(&msm_obj->base);
if (!msm_obj->pages) {
GEM_WARN_ON(msm_obj->pin_count);
@ -831,7 +831,7 @@ static void update_lru(struct drm_gem_object *obj)
bool msm_gem_active(struct drm_gem_object *obj)
{
GEM_WARN_ON(!msm_gem_is_locked(obj));
msm_gem_assert_locked(obj);
if (to_msm_bo(obj)->pin_count)
return true;

8
drivers/gpu/drm/msm/msm_gem.h
View File

@ -215,6 +215,12 @@ msm_gem_is_locked(struct drm_gem_object *obj)
return dma_resv_is_locked(obj->resv) || (kref_read(&obj->refcount) == 0);
}
static inline void
msm_gem_assert_locked(struct drm_gem_object *obj)
{
GEM_WARN_ON(!msm_gem_is_locked(obj));
}
/* imported/exported objects are not purgeable: */
static inline bool is_unpurgeable(struct msm_gem_object *msm_obj)
{
@ -229,7 +235,7 @@ static inline bool is_purgeable(struct msm_gem_object *msm_obj)
static inline bool is_vunmapable(struct msm_gem_object *msm_obj)
{
GEM_WARN_ON(!msm_gem_is_locked(&msm_obj->base));
msm_gem_assert_locked(&msm_obj->base);
return (msm_obj->vmap_count == 0) && msm_obj->vaddr;
}