4.2.8-ckt4 -stable review patch.  If anyone has any objections, please let me 
know.

---8<------------------------------------------------------------

From: =?UTF-8?q?Michel=20D=C3=A4nzer?= <[email protected]>

commit 9571e1d84042f5670df9fabdcbe7dd5da3abe43e upstream.

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 <[email protected]>
Signed-off-by: Michel Dänzer <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Kamal Mostafa <[email protected]>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 7 +++----
 1 file 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 453c00b..a935644 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1190,7 +1190,7 @@ 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) {
@@ -1208,8 +1208,7 @@ 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;
@@ -1260,7 +1259,7 @@ 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].bo);
-       kfree(vm->page_tables);
+       drm_free_large(vm->page_tables);
 
        amdgpu_bo_unref(&vm->page_directory);
 
-- 
1.9.1

Reply via email to