For partial migrate from ram to vram, the migrate->cpages is not
equal to migrate->npages, should use migrate->npages to check all needed
migrate pages which could be copied or not.

And only need to set those pages could be migrated to migrate->dst[i], or
the migrate_vma_pages will migrate the wrong pages based on the migrate->dst[i].

Signed-off-by: Emily Deng <emily.d...@amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index eacfeb32f35d..4140381b0bc0 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
@@ -278,7 +278,7 @@ svm_migrate_copy_to_vram(struct kfd_node *node, struct 
svm_range *prange,
                         struct migrate_vma *migrate, struct dma_fence **mfence,
                         dma_addr_t *scratch, uint64_t ttm_res_offset)
 {
-       uint64_t npages = migrate->cpages;
+       uint64_t npages = migrate->npages;
        struct amdgpu_device *adev = node->adev;
        struct device *dev = adev->dev;
        struct amdgpu_res_cursor cursor;
@@ -299,9 +299,6 @@ svm_migrate_copy_to_vram(struct kfd_node *node, struct 
svm_range *prange,
                struct page *spage;
 
                dst[i] = cursor.start + (j << PAGE_SHIFT);
-               migrate->dst[i] = svm_migrate_addr_to_pfn(adev, dst[i]);
-               svm_migrate_get_vram_page(prange, migrate->dst[i]);
-               migrate->dst[i] = migrate_pfn(migrate->dst[i]);
 
                spage = migrate_pfn_to_page(migrate->src[i]);
                if (spage && !is_zone_device_page(spage)) {
@@ -345,6 +342,9 @@ svm_migrate_copy_to_vram(struct kfd_node *node, struct 
svm_range *prange,
                } else {
                        j++;
                }
+               migrate->dst[i] = svm_migrate_addr_to_pfn(adev, dst[i]);
+               svm_migrate_get_vram_page(prange, migrate->dst[i]);
+               migrate->dst[i] = migrate_pfn(migrate->dst[i]);
        }
 
        r = svm_migrate_copy_memory_gart(adev, src + i - j, dst + i - j, j,
-- 
2.34.1

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