amdgpu on RX580

[drm] amdgpu kernel modesetting enabled.
drmn0: <drmn> on vgapci0
vgapci0: child drmn0 requested pci_enable_io
vgapci0: child drmn0 requested pci_enable_io
[drm] initializing kernel modesetting (POLARIS10 0x1002:0x67DF 0x1DA2:0xE366 0xE7).
[drm] register mmio base: 0xFE800000
[drm] register mmio size: 262144
[drm] PCI I/O BAR is not found.
[drm] probing gen 2 caps for device 1022:1453 = 737903/e
[drm] probing mlw for device 1002:67df = 440903
[drm] UVD is enabled in VM mode
[drm] UVD ENC is enabled in VM mode
[drm] VCE enabled in VM mode
[drm] vm size is 64 GB, 2 levels, block size is 10-bit, fragment size is 9-bit
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_mc.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_mc_bin
drmn0: VRAM: 4096M 0x000000F400000000 - 0x000000F4FFFFFFFF (4096M used)
drmn0: GTT: 256M 0x0000000000000000 - 0x000000000FFFFFFF
[drm] Detected VRAM RAM=4096M, BAR=256M
[drm] RAM width 256bits GDDR5
[drm] amdgpu: 4096M of VRAM memory ready
[drm] amdgpu: 4096M of GTT memory ready.
[drm] GART: num cpu pages 65536, num gpu pages 65536
[drm] PCIE GART of 256M enabled (table at 0x000000F400040000).
[drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[drm] Driver supports precise vblank timestamp query.
[drm] Connector DP-1: get mode from tunables:
[drm]   - kern.vt.fb.modes.DP-1
[drm]   - kern.vt.fb.default_mode
[drm] Connector DP-2: get mode from tunables:
[drm]   - kern.vt.fb.modes.DP-2
[drm]   - kern.vt.fb.default_mode
[drm] Connector HDMI-A-1: get mode from tunables:
[drm]   - kern.vt.fb.modes.HDMI-A-1
[drm]   - kern.vt.fb.default_mode
[drm] Connector HDMI-A-2: get mode from tunables:
[drm]   - kern.vt.fb.modes.HDMI-A-2
[drm]   - kern.vt.fb.default_mode
[drm] Connector DVI-D-1: get mode from tunables:
[drm]   - kern.vt.fb.modes.DVI-D-1
[drm]   - kern.vt.fb.default_mode
[drm] AMDGPU Display Connectors
[drm] Connector 0:
[drm]   DP-1
[drm]   HPD6
[drm]   DDC: 0x4868 0x4868 0x4869 0x4869 0x486a 0x486a 0x486b 0x486b
[drm]   Encoders:
[drm]     DFP1: INTERNAL_UNIPHY2
[drm] Connector 1:
[drm]   DP-2
[drm]   HPD4
[drm]   DDC: 0x4870 0x4870 0x4871 0x4871 0x4872 0x4872 0x4873 0x4873
[drm]   Encoders:
[drm]     DFP2: INTERNAL_UNIPHY2
[drm] Connector 2:
[drm]   HDMI-A-1
[drm]   HPD1
[drm]   DDC: 0x486c 0x486c 0x486d 0x486d 0x486e 0x486e 0x486f 0x486f
[drm]   Encoders:
[drm]     DFP3: INTERNAL_UNIPHY1
[drm] Connector 3:
[drm]   HDMI-A-2
[drm]   HPD5
[drm]   DDC: 0x4874 0x4874 0x4875 0x4875 0x4876 0x4876 0x4877 0x4877
[drm]   Encoders:
[drm]     DFP4: INTERNAL_UNIPHY1
[drm] Connector 4:
[drm]   DVI-D-1
[drm]   HPD3
[drm]   DDC: 0x487c 0x487c 0x487d 0x487d 0x487e 0x487e 0x487f 0x487f
[drm]   Encoders:
[drm]     DFP5: INTERNAL_UNIPHY
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_pfp_2.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_pfp_2_bin
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_me_2.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_me_2_bin
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_ce_2.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_ce_2_bin
[drm] Chained IB support enabled!
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_rlc.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_rlc_bin
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_mec_2.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_mec_2_bin
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_mec2_2.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_mec2_2_bin
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_sdma.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_sdma_bin
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_sdma1.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_sdma1_bin
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_uvd.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_uvd_bin
[drm] Found UVD firmware Version: 1.130 Family ID: 16
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_vce.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_vce_bin
[drm] Found VCE firmware Version: 53.26 Binary ID: 3
drmn0: fail (0) to get firmware image with name: amdgpu/polaris10_k_smc.bin
drmn0: successfully loaded firmware image with mapped name: amdgpu_polaris10_k_smc_bin
[drm] UVD and UVD ENC initialized successfully.
[drm] VCE initialized successfully.
[drm] fb mappable at 0xE0568000
[drm] vram apper at 0xE0000000
[drm] size 8294400
[drm] fb depth is 24
[drm]    pitch is 7680
name=drmn0 flags=0x0 stride=7680 bpp=32
drmn0: fb0: amdgpudrmfb frame buffer device
drmn0: Adding temperature sysctls
[drm] Initialized amdgpu 3.23.0 20150101 for drmn0 on minor 0