drm/amdgpu: Use drm_calloc_large for VM page_tables array

It can be big, depending on the VM address space size, which is tunable
via the vm_size module parameter.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93721
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index aefc668e6b5d..9599f7559b3d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1282,7 +1282,7 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
 {
         const unsigned align = min(AMDGPU_VM_PTB_ALIGN_SIZE,
                 AMDGPU_VM_PTE_COUNT * 8);
-        unsigned pd_size, pd_entries, pts_size;
+        unsigned pd_size, pd_entries;
         int i, r;
 
         for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
@@ -1300,8 +1300,7 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
         pd_entries = amdgpu_vm_num_pdes(adev);
 
         /* allocate page table array */
-        pts_size = pd_entries * sizeof(struct amdgpu_vm_pt);
-        vm->page_tables = kzalloc(pts_size, GFP_KERNEL);
+        vm->page_tables = drm_calloc_large(pd_entries, sizeof(struct amdgpu_vm_pt));
         if (vm->page_tables == NULL) {
                 DRM_ERROR("Cannot allocate memory for page table array\n");
                 return -ENOMEM;
@@ -1361,7 +1360,7 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm)
 
         for (i = 0; i < amdgpu_vm_num_pdes(adev); i++)
                 amdgpu_bo_unref(&vm->page_tables[i].entry.robj);
-        kfree(vm->page_tables);
+        drm_free_large(vm->page_tables);
 
         amdgpu_bo_unref(&vm->page_directory);
         fence_put(vm->page_directory_fence);