drm/amdgpu: mmVM_L2_CNTL3 register not initialized correctly

[ Upstream commit b8983d42524f10ac6bf35bbce6a7cc8e45f61e04 ]

The mmVM_L2_CNTL3 register is not assigned an initial value

Signed-off-by: Qu Huang <jinsdb@126.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
index f84701c562bf212230dbddccc971038ce160f54b..97441f373531fafcee0ea297753b60d50a55cd11 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
@@ -178,6 +178,7 @@ 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,