[PATCH v1 05/14] drm/amdkfd: ref count init for device pages
Alex Sierra
alex.sierra at amd.com
Wed Aug 25 03:48:19 UTC 2021
Ref counter from device pages is init to zero during memmap init zone.
The first time a new device page is allocated to migrate data into it,
its ref counter needs to be initialized to one.
Signed-off-by: Alex Sierra <alex.sierra at amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index dab290a4d19d..47ee9a895cd2 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
@@ -220,7 +220,7 @@ svm_migrate_get_vram_page(struct svm_range *prange, unsigned long pfn)
page = pfn_to_page(pfn);
svm_range_bo_ref(prange->svm_bo);
page->zone_device_data = prange->svm_bo;
- get_page(page);
+ init_page_count(page);
lock_page(page);
}
--
2.32.0
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