$ lspci -v -s 02:00.0
02:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV370 [Radeon X600/X600 SE] (prog-if 00 [VGA controller])
Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] RV370 [Radeon X600/X600 SE]
Flags: bus master, fast devsel, latency 0, IRQ 40, NUMA node 0
Memory at d8000000 (64-bit, prefetchable) [size=128M]
Memory at fbde0000 (64-bit, non-prefetchable) [size=64K]
I/O ports at c000 [size=256]
Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: radeon
Kernel modules: radeon
kernel: [drm] radeon kernel modesetting enabled.
kernel: radeon 0000:02:00.0: remove_conflicting_pci_framebuffers: bar 0: 0xd8000000 -> 0xdfffffff
kernel: radeon 0000:02:00.0: remove_conflicting_pci_framebuffers: bar 2: 0xfbde0000 -> 0xfbdeffff
kernel: [drm] initializing kernel modesetting (RV380 0x1002:0x5B62 0x1002:0x0F02 0x00).
kernel: resource sanity check: requesting [mem 0x000c0000-0x000dffff], which spans more than PCI Bus 0000:00 [mem 0x000d0000-0x000dffff window]
kernel: caller 0xffffffff9b3b0a04 mapping multiple BARs
kernel: [drm] Generation 2 PCI interface, using max accessible memory
kernel: radeon 0000:02:00.0: VRAM: 128M 0x00000000D8000000 - 0x00000000DFFFFFFF (128M used)
kernel: radeon 0000:02:00.0: GTT: 512M 0x00000000B8000000 - 0x00000000D7FFFFFF
kernel: [drm] Detected VRAM RAM=128M, BAR=128M
kernel: [drm] RAM width 64bits DDR
kernel: [TTM] Zone kernel: Available graphics memory: 16498482 KiB
kernel: [TTM] Zone dma32: Available graphics memory: 2097152 KiB
kernel: [TTM] Initializing pool allocator
kernel: [drm] radeon kernel modesetting enabled.
kernel: radeon 0000:02:00.0: remove_conflicting_pci_framebuffers: bar 0: 0xd8000000 -> 0xdfffffff
kernel: radeon 0000:02:00.0: remove_conflicting_pci_framebuffers: bar 2: 0xfbde0000 -> 0xfbdeffff
kernel: [drm] initializing kernel modesetting (RV380 0x1002:0x5B62 0x1002:0x0F02 0x00).
kernel: resource sanity check: requesting [mem 0x000c0000-0x000dffff], which spans more than PCI Bus 0000:00 [mem 0x000d0000-0x000dffff window]
kernel: caller 0xffffffff9b3b0a04 mapping multiple BARs
kernel: [drm] Generation 2 PCI interface, using max accessible memory
kernel: radeon 0000:02:00.0: VRAM: 128M 0x00000000D8000000 - 0x00000000DFFFFFFF (128M used)
kernel: radeon 0000:02:00.0: GTT: 512M 0x00000000B8000000 - 0x00000000D7FFFFFF
kernel: [drm] Detected VRAM RAM=128M, BAR=128M
kernel: [drm] RAM width 64bits DDR
kernel: [TTM] Zone kernel: Available graphics memory: 16498482 KiB
kernel: [TTM] Zone dma32: Available graphics memory: 2097152 KiB
kernel: [TTM] Initializing pool allocator
kernel: [TTM] Initializing DMA pool allocator
kernel: [drm] radeon: 128M of VRAM memory ready
kernel: [drm] radeon: 512M of GTT memory ready.
kernel: [drm] GART: num cpu pages 131072, num gpu pages 131072
kernel: [drm] radeon: 1 quad pipes, 1 Z pipes initialized
kernel: [drm] PCIE GART of 512M enabled (table at 0x00000000D8040000).
kernel: radeon 0000:02:00.0: WB enabled
kernel: radeon 0000:02:00.0: fence driver on ring 0 use gpu addr 0x00000000b8000000 and cpu addr 0x(____ptrval____)
kernel: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
kernel: [drm] Driver supports precise vblank timestamp query.
kernel: radeon 0000:02:00.0: radeon: MSI limited to 32-bit
kernel: radeon 0000:02:00.0: radeon: using MSI.
kernel: [drm] radeon: irq initialized.
kernel: [drm] Loading R300 Microcode
kernel: [drm] radeon: ring at 0x00000000B8001000
kernel: [drm] ring test succeeded in 1 usecs
kernel: [drm] ib test succeeded in 0 usecs
kernel: [drm] Radeon Display Connectors
kernel: [drm] Connector 0:
kernel: [drm] DVI-I-1
kernel: [drm] HPD1
kernel: [drm] DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
kernel: [drm] Encoders:
kernel: [drm] CRT1: INTERNAL_DAC1
kernel: [drm] DFP1: INTERNAL_TMDS1
kernel: [drm] Connector 1:
kernel: [drm] SVIDEO-1
kernel: [drm] Encoders:
kernel: [drm] TV1: INTERNAL_DAC2
kernel: [drm] Cannot find any crtc or sizes
kernel: [drm] Initialized radeon 2.50.0 20080528 for 0000:02:00.0 on minor 0
# dmesg | grep ATOM
[ 0.752011] ATOM BIOS: TURKS
[ 2.434756] ATOM BIOS: Tahiti