struct page *page;
page = pfn_to_page(pfn);
- page->zone_device_data = prange;
+ svm_range_bo_ref(prange->svm_bo);
+ page->zone_device_data = prange->svm_bo;
get_page(page);
lock_page(page);
}
static void svm_migrate_page_free(struct page *page)
{
- /* Keep this function to avoid warning */
+ struct svm_range_bo *svm_bo = page->zone_device_data;
+
+ if (svm_bo) {
+ pr_debug("svm_bo ref left: %d\n", kref_read(&svm_bo->kref));
+ svm_range_bo_unref(svm_bo);
+ }
}
static int
return true;
}
-static struct svm_range_bo *svm_range_bo_ref(struct svm_range_bo *svm_bo)
-{
- if (svm_bo)
- kref_get(&svm_bo->kref);
-
- return svm_bo;
-}
-
static void svm_range_bo_release(struct kref *kref)
{
struct svm_range_bo *svm_bo;
kfree(svm_bo);
}
-static void svm_range_bo_unref(struct svm_range_bo *svm_bo)
+void svm_range_bo_unref(struct svm_range_bo *svm_bo)
{
if (!svm_bo)
return;
mutex_unlock(&prange->lock);
}
+static inline struct svm_range_bo *svm_range_bo_ref(struct svm_range_bo *svm_bo)
+{
+ if (svm_bo)
+ kref_get(&svm_bo->kref);
+
+ return svm_bo;
+}
+
int svm_range_list_init(struct kfd_process *p);
void svm_range_list_fini(struct kfd_process *p);
int svm_ioctl(struct kfd_process *p, enum kfd_ioctl_svm_op op, uint64_t start,
*/
#define KFD_IS_SVM_API_SUPPORTED(dev) ((dev)->pgmap.type != 0)
+void svm_range_bo_unref(struct svm_range_bo *svm_bo);
#else
struct kfd_process;