drm/amdgpu: flush gart changes after all BO recovery

Don't flush gart changes after recovering each BO instead
do it after recovering all the BOs. Flishing gart also needed
for amdgpu_ttm_alloc_gart().

v4: use containerof to retrieve adev struct.
v3: rename amdgpu_gart_tlb_flush() -> amdgpu_gart_invalidate_tlb().
v2: abstract out gart tlb flushing logic to amdgpu_gart.c

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 15 insertions, 7 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index 5562b5c90c03..35cc8009ac7a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
@@ -312,8 +312,6 @@ int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
 		     int pages, struct page **pagelist, dma_addr_t *dma_addr,
 		     uint64_t flags)
 {
-	int r, i;
-
 	if (!adev->gart.ready) {
 		WARN(1, "trying to bind memory to uninitialized GART !\n");
 		return -EINVAL;
@@ -322,16 +320,26 @@ int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
 	if (!adev->gart.ptr)
 		return 0;
 
-	r = amdgpu_gart_map(adev, offset, pages, dma_addr, flags,
-		    adev->gart.ptr);
-	if (r)
-		return r;
+	return amdgpu_gart_map(adev, offset, pages, dma_addr, flags,
+			       adev->gart.ptr);
+}
+
+/**
+ * amdgpu_gart_invalidate_tlb - invalidate gart TLB
+ *
+ * @adev: amdgpu device driver pointer
+ *
+ * Invalidate gart TLB which can be use as a way to flush gart changes
+ *
+ */
+void amdgpu_gart_invalidate_tlb(struct amdgpu_device *adev)
+{
+	int i;
 
 	mb();
 	amdgpu_asic_flush_hdp(adev, NULL);
 	for (i = 0; i < adev->num_vmhubs; i++)
 		amdgpu_gmc_flush_gpu_tlb(adev, 0, i, 0);
-	return 0;
 }
 
 /**