Comment 6 for bug 1941854

@jeremy,

$ lspci -nnv -d ::0x0300
04:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:1638] (rev d3) (prog-if 00 [VGA controller])
        DeviceName: Onboard IGD
        Subsystem: Hewlett-Packard Company Device [103c:8895]
        Flags: bus master, fast devsel, latency 0, IRQ 51
        Memory at 260000000 (64-bit, prefetchable) [size=256M]
        Memory at 270000000 (64-bit, prefetchable) [size=2M]
        I/O ports at 1000 [size=256]
        Memory at fb300000 (32-bit, non-prefetchable) [size=512K]
        Capabilities: <access denied>
        Kernel driver in use: amdgpu
        Kernel modules: amdgpu

It shows 256M in lspci instead 512 MB in kernel log.

[kernel log]
[ 0.870069] [drm] amdgpu: 512M of VRAM memory ready
[ 0.870072] [drm] amdgpu: 3072M of GTT memory ready.