diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index 0361396d17cb..9971c210cb4c 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
@@ -33,6 +33,178 @@
 #include "kfd_svm.h"
 #include "kfd_migrate.h"
 
+static uint64_t
+svm_migrate_direct_mapping_addr(struct amdgpu_device *adev, uint64_t addr)
+{
+	return addr + amdgpu_ttm_domain_start(adev, TTM_PL_VRAM);
+}
+
+static int
+svm_migrate_gart_map(struct amdgpu_ring *ring, uint64_t npages,
+		     dma_addr_t *addr, uint64_t *gart_addr, uint64_t flags)
+{
+	struct amdgpu_device *adev = ring->adev;
+	struct amdgpu_job *job;
+	unsigned int num_dw, num_bytes;
+	struct dma_fence *fence;
+	uint64_t src_addr, dst_addr;
+	uint64_t pte_flags;
+	void *cpu_addr;
+	int r;
+
+	/* use gart window 0 */
+	*gart_addr = adev->gmc.gart_start;
+
+	num_dw = ALIGN(adev->mman.buffer_funcs->copy_num_dw, 8);
+	num_bytes = npages * 8;
+
+	r = amdgpu_job_alloc_with_ib(adev, num_dw * 4 + num_bytes,
+				     AMDGPU_IB_POOL_DELAYED, &job);
+	if (r)
+		return r;
+
+	src_addr = num_dw * 4;
+	src_addr += job->ibs[0].gpu_addr;
+
+	dst_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
+	amdgpu_emit_copy_buffer(adev, &job->ibs[0], src_addr,
+				dst_addr, num_bytes, false);
+
+	amdgpu_ring_pad_ib(ring, &job->ibs[0]);
+	WARN_ON(job->ibs[0].length_dw > num_dw);
+
+	pte_flags = AMDGPU_PTE_VALID | AMDGPU_PTE_READABLE;
+	pte_flags |= AMDGPU_PTE_SYSTEM | AMDGPU_PTE_SNOOPED;
+	if (!(flags & KFD_IOCTL_SVM_FLAG_GPU_RO))
+		pte_flags |= AMDGPU_PTE_WRITEABLE;
+	pte_flags |= adev->gart.gart_pte_flags;
+
+	cpu_addr = &job->ibs[0].ptr[num_dw];
+
+	r = amdgpu_gart_map(adev, 0, npages, addr, pte_flags, cpu_addr);
+	if (r)
+		goto error_free;
+
+	r = amdgpu_job_submit(job, &adev->mman.entity,
+			      AMDGPU_FENCE_OWNER_UNDEFINED, &fence);
+	if (r)
+		goto error_free;
+
+	dma_fence_put(fence);
+
+	return r;
+
+error_free:
+	amdgpu_job_free(job);
+	return r;
+}
+
+/**
+ * svm_migrate_copy_memory_gart - sdma copy data between ram and vram
+ *
+ * @adev: amdgpu device the sdma ring running
+ * @src: source page address array
+ * @dst: destination page address array
+ * @npages: number of pages to copy
+ * @direction: enum MIGRATION_COPY_DIR
+ * @mfence: output, sdma fence to signal after sdma is done
+ *
+ * ram address uses GART table continuous entries mapping to ram pages,
+ * vram address uses direct mapping of vram pages, which must have npages
+ * number of continuous pages.
+ * GART update and sdma uses same buf copy function ring, sdma is splited to
+ * multiple GTT_MAX_PAGES transfer, all sdma operations are serialized, wait for
+ * the last sdma finish fence which is returned to check copy memory is done.
+ *
+ * Context: Process context, takes and releases gtt_window_lock
+ *
+ * Return:
+ * 0 - OK, otherwise error code
+ */
+
+static int
+svm_migrate_copy_memory_gart(struct amdgpu_device *adev, dma_addr_t *sys,
+			     uint64_t *vram, uint64_t npages,
+			     enum MIGRATION_COPY_DIR direction,
+			     struct dma_fence **mfence)
+{
+	const uint64_t GTT_MAX_PAGES = AMDGPU_GTT_MAX_TRANSFER_SIZE;
+	struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
+	uint64_t gart_s, gart_d;
+	struct dma_fence *next;
+	uint64_t size;
+	int r;
+
+	mutex_lock(&adev->mman.gtt_window_lock);
+
+	while (npages) {
+		size = min(GTT_MAX_PAGES, npages);
+
+		if (direction == FROM_VRAM_TO_RAM) {
+			gart_s = svm_migrate_direct_mapping_addr(adev, *vram);
+			r = svm_migrate_gart_map(ring, size, sys, &gart_d, 0);
+
+		} else if (direction == FROM_RAM_TO_VRAM) {
+			r = svm_migrate_gart_map(ring, size, sys, &gart_s,
+						 KFD_IOCTL_SVM_FLAG_GPU_RO);
+			gart_d = svm_migrate_direct_mapping_addr(adev, *vram);
+		}
+		if (r) {
+			pr_debug("failed %d to create gart mapping\n", r);
+			goto out_unlock;
+		}
+
+		r = amdgpu_copy_buffer(ring, gart_s, gart_d, size * PAGE_SIZE,
+				       NULL, &next, false, true, false);
+		if (r) {
+			pr_debug("failed %d to copy memory\n", r);
+			goto out_unlock;
+		}
+
+		dma_fence_put(*mfence);
+		*mfence = next;
+		npages -= size;
+		if (npages) {
+			sys += size;
+			vram += size;
+		}
+	}
+
+out_unlock:
+	mutex_unlock(&adev->mman.gtt_window_lock);
+
+	return r;
+}
+
+/**
+ * svm_migrate_copy_done - wait for memory copy sdma is done
+ *
+ * @adev: amdgpu device the sdma memory copy is executing on
+ * @mfence: migrate fence
+ *
+ * Wait for dma fence is signaled, if the copy ssplit into multiple sdma
+ * operations, this is the last sdma operation fence.
+ *
+ * Context: called after svm_migrate_copy_memory
+ *
+ * Return:
+ * 0		- success
+ * otherwise	- error code from dma fence signal
+ */
+int
+svm_migrate_copy_done(struct amdgpu_device *adev, struct dma_fence *mfence)
+{
+	int r = 0;
+
+	if (mfence) {
+		r = dma_fence_wait(mfence, false);
+		dma_fence_put(mfence);
+		pr_debug("sdma copy memory fence done\n");
+	}
+
+	return r;
+}
+
 static void svm_migrate_page_free(struct page *page)
 {
 }
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.h b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.h
index 89392548ec44..df84e4143e25 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.h
@@ -33,6 +33,11 @@
 #include "kfd_priv.h"
 #include "kfd_svm.h"
 
+enum MIGRATION_COPY_DIR {
+	FROM_RAM_TO_VRAM = 0,
+	FROM_VRAM_TO_RAM
+};
+
 #if defined(CONFIG_DEVICE_PRIVATE)
 int svm_migrate_init(struct amdgpu_device *adev);
 void svm_migrate_fini(struct amdgpu_device *adev);
