drm/amdgpu: mmVM_L2_CNTL3 register not initialized correctly

From Qu Huang
ad5ef763dbbea8193bd2095a1401aeac6e8f74e8 in linux 5.15.y/5.15.68
b8983d42524f10ac6bf35bbce6a7cc8e45f61e04 in mainline linux

diff --git a/sys/dev/pci/drm/amd/amdgpu/mmhub_v1_0.c b/sys/dev/pci/drm/amd/amdgpu/mmhub_v1_0.c
index b3bede1..4259f62 100644 (file)
--- a/sys/dev/pci/drm/amd/amdgpu/mmhub_v1_0.c
+++ b/sys/dev/pci/drm/amd/amdgpu/mmhub_v1_0.c
@@ -176,6 +176,7 @@ static void mmhub_v1_0_init_cache_regs(struct amdgpu_device *adev)
        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
        WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2, tmp);
 
+       tmp = mmVM_L2_CNTL3_DEFAULT;
        if (adev->gmc.translate_further) {
                tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 12);
                tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,