drm/amdgpu: Avoid fetching vram vendor information

[linux-2.6-microblaze.git] / drivers / gpu / drm / amd / amdgpu / gmc_v9_0.c

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 9bff723..a3a1153 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1952,7 +1952,8 @@ static void gmc_v9_4_3_init_vram_info(struct amdgpu_device *adev)
        static const u32 regBIF_BIOS_SCRATCH_4 = 0x50;
        u32 vram_info;
 
-       if (!amdgpu_sriov_vf(adev)) {
+       /* Only for dGPU, vendor informaton is reliable */
+       if (!amdgpu_sriov_vf(adev) && !(adev->flags & AMD_IS_APU)) {
                vram_info = RREG32(regBIF_BIOS_SCRATCH_4);
                adev->gmc.vram_vendor = vram_info & 0xF;
        }