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Date:   Tue, 24 Aug 2021 22:48:19 -0500
From:   Alex Sierra <>
Subject: [PATCH v1 05/14] drm/amdkfd: ref count init for device pages

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 <>
 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);
 	page->zone_device_data = prange->svm_bo;
-	get_page(page);
+	init_page_count(page);

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